35720

Appears in sequences

• Even square pyramidal numbers.at n=22A015222
• Structured rhombic dodecahedral numbers (vertex structure 9).at n=23A100157
• a(n) = (2*n+1)*(n+1)*(2*n^2+3*n-1).at n=9A123197
• Expansion of 1/(1 - x - 3x^2 + x^3).at n=14A125691
• Sum of squares until integer log : sopfr(n). Or also, s(s+1)(2s+1)/6 where s=sopfr(n).at n=46A136135
• a(n) = 4*(3*n+1)*(3*n+2).at n=31A144410
• a(1)=0, a(n) = n^3 - a(n-1).at n=40A153026
• The Wiener index of the windmill graph D(6,n). The windmill graph D(m,n) is the graph obtained by taking n copies of the complete graph K_m with a vertex in common (i.e., a bouquet of n pieces of K_m graphs).at n=37A180577
• Sums of least knight's moves from (0,0) to points in the square lattice [-n,n]x[-n,n].at n=28A183047
• Number of squares formed from a square composed of p^2 unit squares where p is n-th prime.at n=14A262247
• E.g.f.: Product_{k>=1} 1/(1 + x^k/k).at n=8A292358
• Numbers k such that k and k+1 are both half-Zumkeller numbers (A246198).at n=8A331371
• Numbers k such that the sum of the proper divisors of k that have the same binary weight as k is larger than k, and no subset of these divisors sums to k.at n=19A381071
• Number of forests with at most n unlabeled nodes.at n=15A386399