104652

Appears in sequences

• Triangle of rooted planar maps, read by rows.at n=42A046652
• a(n) = n*(n-1)^2*(n-2).at n=17A047928
• Numbers n such that core(n)=floor(sqrt(n)), where core(x)=A007913(x) is the squarefree part of x and floor(sqrt(x))=A000196(x).at n=23A069186
• Triangle read by rows: T(n,k) is the number of nonseparable planar maps with 2*n+1 edges and a fixed outer face of 2*k edges which are invariant under a rotation of a 1/2 turn.at n=38A091665
• Numbers whose base-10 and base-7 representations are permutations of the same multiset of digits.at n=51A130604
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, -1), (-1, -1, 1), (-1, 1, -1), (1, -1, 0), (1, 0, 1)}.at n=12A148218
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, 0, 0), (0, -1, 0), (0, 1, -1), (1, 0, 1)}.at n=11A148776
• Number of reduced words of length n in Coxeter group on 19 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=4A162805
• Oblong numbers that are the product of two oblong numbers.at n=21A188660
• Numbers k such that the square part of k is one greater than the squarefree part of k.at n=6A189883
• Crossing number of the n-crown graph (conjectured).at n=37A307182
• Records in A175046.at n=21A319422
• Total semiperimeter of 2-Fuss-Catalan polyominoes of length 2n.at n=6A361960
• Oblong numbers that are products of smaller oblong numbers.at n=27A374374