OFFSET
1,1
COMMENTS
N2×8(1, k; 1, 1, 1, 1) where k >= 3. (Siap-Aydogdu p 20)
LINKS
Lars Blomberg, Table of n, a(n) for n = 1..100
I. Siap and I. Aydogdu, Counting The Generator Matrices of Z_2 Z_8 Codes, arXiv preprint arXiv:1303.6985, 2013
Index entries for linear recurrences with constant coefficients, signature (240, -17920, 491520, -4194304).
MATHEMATICA
a[n_] := 4^(2(n+2)-7)(2^(n+2)-4)(2^(n+2)-2)(2^(n+2)-1);
Array[a, 14] (* Jean-François Alcover, Sep 01 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Jun 02 2013
EXTENSIONS
Terms a(5) and beyond from Lars Blomberg, Jun 14 2017
STATUS
approved