805289984
domain: N
Appears in sequences
- Relates row sums of Pascal's triangle to expansion of cos(x)/exp(x).at n=29A100216
- Duplicate of A136488.at n=29A135098
- a(n) = 4*a(n-1) - 6*a(n-2) + 4*a(n-3) for n > 4, with first terms 1, 2, 4, 7.at n=30A135360
- a(n) = 2^n - A005418(n).at n=29A136488
- Number of 2 X n binary matrices M with rows in strictly increasing order and rows of M*Mtranspose (mod 2) in strictly increasing order.at n=15A181270