122821042
domain: N
Appears in sequences
- Number of compositions (ordered partitions) of n into 1's, 2's and 4's.at n=34A060945
- Expansion of (1-x)^(-1)/(1+2*x+x^2+x^3).at n=34A077930
- a(0) = 0, a(1) = 1, a(2) = 1, a(3) = 2; a(n) = a(n-1) + a(n-2) + a(n-4).at n=35A181532
- Expansion of (1-x-x^2)/((x-1)*(x^3+3*x^2+2*x-1)).at n=17A238236
- Number of compositions (ordered partitions) of n into powers of 2 not greater than sqrt(n).at n=34A369222