MinT - Best Known (128, 145, s)-Nets in Base 4

Best Known (128, 145, s)-Nets in Base 4

Digital (128, 145, 1048575)-net over F₄, using

net defined by OOA [i] based on linear OOA(4¹⁴⁵, 1048575, F₄, 17, 17) (dual of [(1048575, 17), 17825630, 18]-NRT-code), using
- OOA 8-folding and stacking with additional row [i] based on linear OA(4¹⁴⁵, 8388601, F₄, 17) (dual of [8388601, 8388456, 18]-code), using
  - discarding factors / shortening the dual code based on linear OA(4¹⁴⁵, large, F₄, 17) (dual of [large, large−145, 18]-code), using
    - the expurgated narrow-sense BCH-code C(I) with length 16777217Â | 4²⁴âˆ’1, defining interval IÂ =Â [0,8], and minimum distance dÂ â‰¥ |{−8,−7,…,8}|+1Â =Â 18 (BCH-bound) [i]

Digital (128, 145, 2844118)-net over F₄, using

embedding of OOA with Gilbertâ€“VarÅ¡amov bound [i] based on linear OOA(4¹⁴⁵, 2844118, F₄, 2, 17) (dual of [(2844118, 2), 5688091, 18]-NRT-code), using
- discarding factors / shortening the dual code based on linear OOA(4¹⁴⁵, 4194301, F₄, 2, 17) (dual of [(4194301, 2), 8388457, 18]-NRT-code), using
  - OOA 2-folding [i] based on linear OA(4¹⁴⁵, 8388602, F₄, 17) (dual of [8388602, 8388457, 18]-code), using
    - discarding factors / shortening the dual code based on linear OA(4¹⁴⁵, large, F₄, 17) (dual of [large, large−145, 18]-code), using
      - the expurgated narrow-sense BCH-code C(I) with length 16777217Â | 4²⁴âˆ’1, defining interval IÂ =Â [0,8], and minimum distance dÂ â‰¥ |{−8,−7,…,8}|+1Â =Â 18 (BCH-bound) [i]

There is no (128, 145, large)-net in base 4, because

15 times m-reduction [i] would yield (128, 130, large)-net in base 4, but
- mutually orthogonal hypercube bound [i]