65969
domain: N
Appears in sequences
- a(0)=1, a(1)=1, a(n) = 9*a(n/2) for even n >= 2, and a(n) = 8*a((n-1)/2) + a((n+1)/2) for odd n >= 3.at n=43A116526
- a(0) = a(1) = a(2) = 1, for n > 2, a(n) = a(n-1) + a(n-k) + k with k = 3.at n=31A362256
- Numerators of the partial sums of the reciprocals of the powerful part function (A057521).at n=25A379583