11027016
domain: N
Appears in sequences
- Triangle read by rows in which row n gives coefficients of polynomial R_n(y) that satisfies R_n(1/3) = 9^n, where R_n(y) forms the initial (n+1) terms of g.f. A097191(y)^(n+1).at n=20A097190
- Main diagonal of triangle A097190, in which the n-th row polynomial R_n(y) is formed from the initial (n+1) terms of g.f. A097191(y)^(n+1), where R_n(1/3) = 9^n for all n>=0.at n=5A097192
- a(n) = C(n+5,5)*C(n+10,5).at n=8A104679
- a(n) = C(3+2*n,3+n)*C(8+2*n,0+n).at n=5A114251
- Numbers m such that A049060(m)*sigma(m) = k*uphi(m)*m for some integer k.at n=9A122483
- a(n) = 4*(3*n+2)*(2*n+1)*(n+2)*(n+1).at n=26A155122
- Numerator of the harmonic mean of the first n hexagonal numbers.at n=8A250344