4130816

Appears in sequences

• Number of strings over Z_4 of length n with trace 0 and subtrace 0.at n=12A068620
• Number of strings over Z_4 of length n with trace 1 and subtrace 2.at n=12A068787
• 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=12A068789