31563

Appears in sequences

• Number of unsensed 2-connected planar maps with n edges.at n=11A006403
• Numbers k such that k^2 and k^3 do not have any common digits.at n=27A029787
• Numbers k such that k^2 contains only digits {2,6,9}.at n=5A053930
• Triangle, read by rows, where T(n,k) = T(n,k-1) + (2*k+1)*T(n-1,k) for n>k>0, T(n,0)=1 and T(n,n) = T(n,n-1) for n>=0.at n=30A102323
• Triangle read by rows: T(n,k) = number of simple graphs on n labeled nodes with k edges that are node-disjoint unions of undirected cycle subgraphs.at n=53A144161
• Triangle of coefficients of polynomials u(n,x) jointly generated with A210867; see the Formula section.at n=59A210866
• a(3)=5, a(4)=8, a(5)=12; thereafter a(n) = a(n-1) + A000931(n+7).at n=28A220885
• Indices of primes in tetranacci sequence A000078.at n=10A303264
• a(n) = A159065(n+1) - A334701(n).at n=33A335677
• Numbers k such that each digit from 0 to 9 appears in either k^2 or k^3, but not in both.at n=6A359105
• Expansion of 1/(Sum_{k>=0} x^(k^2))^2.at n=36A363774