Best Known (154, s)-Sequences in Base 2
(154, 56)-Sequence over F2 — Constructive and digital
Digital (154, 56)-sequence over F2, using
- t-expansion [i] based on digital (110, 56)-sequence over F2, using
- Niederreiter–Xing sequence construction III based on the algebraic function field F/F2 with g(F) = 69, N(F) = 48, 1 place with degree 2, and 8 places with degree 6 [i] based on function field F/F2 with g(F) = 69 and N(F) ≥ 48, using an explicitly constructive algebraic function field [i]
(154, 80)-Sequence over F2 — Digital
Digital (154, 80)-sequence over F2, using
- t-expansion [i] based on digital (126, 80)-sequence over F2, using
- Niederreiter–Xing sequence construction II/III [i] based on function field F/F2 with g(F) = 126 and N(F) ≥ 81, using
(154, 163)-Sequence in Base 2 — Upper bound on s
There is no (154, 164)-sequence in base 2, because
- net from sequence [i] would yield (154, m, 165)-net in base 2 for arbitrarily large m, but
- m-reduction [i] would yield (154, 1310, 165)-net in base 2, but
- extracting embedded OOA [i] would yield OOA(21310, 165, S2, 8, 1156), but
- the (dual) Plotkin bound for OOAs shows that M ≥ 31 022999 506177 955228 138764 354540 542403 669572 956060 929994 800954 265780 833177 589174 652136 843253 713371 192217 833463 291758 872354 592043 694108 695447 245992 886331 651660 328668 467034 087066 103342 218502 114407 695930 674249 682074 369607 102426 380078 615856 848343 334833 591183 345207 485402 436403 921322 350330 574231 277610 235688 300767 315711 043284 626773 636665 555260 838860 692065 328072 447547 101447 187461 775204 606651 973670 797312 / 1157 > 21310 [i]
- extracting embedded OOA [i] would yield OOA(21310, 165, S2, 8, 1156), but
- m-reduction [i] would yield (154, 1310, 165)-net in base 2, but