240640
domain: N
Appears in sequences
- a(1)=1, a(n) = a(n-1) + n^5 if n odd, a(n) = a(n-1) + n^2 if n is even.at n=11A135095
- Let x(0)x(1)x(2)... x(q) denote the decimal expansion of n. Sequence lists the numbers n such that the suffix of decimal expansion x(2)... x(q) is the p-th divisor of n where p is the prefix of decimal expansion x(0)x(1).at n=27A234315
- a(n) = 4^n*(1 + (23/8)*n + (9/8)*n^2).at n=6A361609