101046

Appears in sequences

• Expansion of 1/((1+x)(1-x)^8).at n=15A001779
• a(n) = n*(13*n^2 - 7)/6.at n=36A062025
• Expansion of g.f. x*(1-x)/(1-4*x-2*x^2+x^3).at n=8A100295
• Numbers whose base-10 and base-7 representations are permutations of the same multiset of digits.at n=35A130604
• Number of distinct connected planar figures that can be formed from n 1x2 rectangles (or dominoes) such that each pair of touching rectangles shares exactly one edge, of length 1, and the adjacency graph of the rectangles is a tree.at n=6A216581