19056

Appears in sequences

• Expansion of (theta_3(z)*theta_3(15z) + theta_2(z)*theta_2(15z))^4.at n=26A028628
• Numbers k such that the least term in the periodic part of the continued fraction for sqrt(k) is 23.at n=5A031701
• Numbers k such that k^2 contains only digits {1,3,6}.at n=11A053892
• Coefficients in asymptotic (divergent) expansion for Sum_{k=1..n} 1/C(n,k)^2.at n=9A076687
• Triangle, read by rows, of coefficients in powers of e.g.f. for A100076 such that, for each row n>=0, Sum_{k=0..n} T(n,k)/k! = [sqrt(5)^n].at n=41A100075
• Row sums of triangle A131819.at n=37A131820
• Triangle T(n, k) = 2^(k-1) * E(n, k-1) where E(n,k) are the Eulerian numbers A173018, read by rows.at n=25A142075
• T(n, k) = E(n, k)*2^k where E(n,k) are the Eulerian numbers A173018, for n > 0 and 0 <= k <= n-1, additionally T(0,0) = 1.at n=26A156365
• a(n) = 529*n^2 + 2*n.at n=5A158367
• Coefficients of a Hermite-like polynomial from Eulerian polynomials: p(x,n) = Sum_{k=1..n+1} [Eulerian(n + 1, k - 1)*x^(k - 1)]; q(x,n) = p''(x,n) - x*p'(x,n) + n*p(x,n).at n=17A171633
• Triangle of coefficients of polynomials u(n,x) jointly generated with A208932; see the Formula section.at n=49A208931
• Number of (w,x,y,z) with all terms in {1,...,n} and |x-y|=|y-z|+1.at n=24A212680
• G.f. satisfies A(x) = exp( Sum_{k>=1} (2 * (-1)^k + A(x^k)) * x^k/k ).at n=46A363565