Best Known (211, s)-Sequences in Base 2
(211, 65)-Sequence over F2 — Constructive and digital
Digital (211, 65)-sequence over F2, using
- t-expansion [i] based on digital (163, 65)-sequence over F2, using
- base reduction for sequences [i] based on digital (49, 65)-sequence over F4, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 49 and N(F) ≥ 66, using
- T6 from the second tower of function fields by GarcÃa and Stichtenoth over F4 [i]
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 49 and N(F) ≥ 66, using
- base reduction for sequences [i] based on digital (49, 65)-sequence over F4, using
(211, 90)-Sequence over F2 — Digital
Digital (211, 90)-sequence over F2, using
- t-expansion [i] based on digital (190, 90)-sequence over F2, using
- base reduction for sequences [i] based on digital (50, 90)-sequence over F4, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F4 with g(F) = 50 and N(F) ≥ 91, using
- base reduction for sequences [i] based on digital (50, 90)-sequence over F4, using
(211, 221)-Sequence in Base 2 — Upper bound on s
There is no (211, 222)-sequence in base 2, because
- net from sequence [i] would yield (211, m, 223)-net in base 2 for arbitrarily large m, but
- m-reduction [i] would yield (211, 1773, 223)-net in base 2, but
- extracting embedded OOA [i] would yield OOA(21773, 223, S2, 8, 1562), but
- the (dual) Plotkin bound for OOAs shows that M ≥ 1230 750843 207539 928922 435802 647717 377774 072468 794186 599823 318040 955208 925010 938163 669183 628773 744558 743507 578510 857577 035212 461689 560849 604729 983448 855410 909048 874370 185000 662392 607711 088538 463540 270289 025722 118549 222942 483983 769465 068896 318440 570701 539644 429382 273010 119520 038506 562494 668145 565755 774934 718884 199574 529274 023570 253716 734046 864760 305107 965556 573062 165926 350002 042756 089888 094651 661644 832526 825444 650780 557110 743776 503739 332333 358720 124543 516002 474240 199939 227046 830090 801005 774710 511854 521519 567400 909274 408195 668316 258304 / 1563 > 21773 [i]
- extracting embedded OOA [i] would yield OOA(21773, 223, S2, 8, 1562), but
- m-reduction [i] would yield (211, 1773, 223)-net in base 2, but