254464

Appears in sequences

• Number of strings over Z_4 of length n with trace 0 and subtrace 0.at n=10A068620
• S(n; 1,3) = S(n; 3,3) where S(n; t,s) is the number of length n 4-ary strings whose digits sum to t mod 4 and whose sum of products of all pairs of digits sum to s mod 4.at n=10A068788
• S(n; 2,0) where S(n; t,s) is the number of length n 4-ary strings whose digits sum to t mod 4 and whose sum of products of all pairs of digits sum to s mod 4.at n=10A068789
• Irregular triangle read by rows: normalized dimensions of certain generalized quadratic residue codes of length n.at n=58A287879