69680
domain: N
Appears in sequences
- Eighth column of quadrinomial coefficients.at n=11A001919
- a(n) = 64*n^2 - 16.at n=32A157913
- a(n) is the number of integers that can be represented in a 7-segment display by using only n segments (version A277116).at n=22A350440
- Coefficient of x^n in the expansion of ( (1+x)^2 * (1+x^2)^2 )^n.at n=7A370195