96287
domain: N
Appears in sequences
- Braided power sequence: A065692 is b(n+1) = 3*b(n) + 2*d(n) - c(n), A065693 is c(n+1) = 3*c(n) + 2*b(n) - d(n) and this is d(n+1) = 3*d(n) + 2*c(n) - b(n), starting with b(0) = 0, c(0) = 1 and d(0) = 2.at n=8A065694
- 3n^3 - 2n^2 + n - 1.at n=31A130885
- a(n) = Sum_{k=1..n} k^2*phi(k), where phi is the Euler totient function A000010.at n=27A319087