39337
domain: N
Appears in sequences
- a(n) = n OR n^3 (applied to ternary expansions).at n=33A008469
- Denominators of continued fraction convergents to sqrt(522).at n=11A041999
- Counterbalanced numbers: Composite numbers k such that phi(k)/(sigma(k)-k) is an integer.at n=30A055940
- 288*n^2 - 168*n - 119.at n=11A118059
- Start with 1 and repeatedly reverse the digits and add 66 to get the next term.at n=29A118200
- A general recursion triangle with third part a power triangle:m=2; Power triangle: f(n,k,m)=If[n*k*(n - k) == 0, 1, n^m - (k^m + (n - k)^m)]; Recursion: A(n,k,m)=(m*(n - k) + 1)*A(n - 1, k - 1, m) + (m*k + 1)*A(n - 1, k, m) + m*f(n, k, m)*A(n - 2, k - 1, m).at n=46A157629
- a(n) = (2n-2)^3 + (2n-2) - 1.at n=17A255877
- G.f.: Sum_{k>=0} x^k * Product_{j=1..3*k} (1 + x^j)/(1 - x^j).at n=24A385089