84090

Appears in sequences

• Number of protruded partitions of n with largest part at most 6.at n=18A005407
• Limiting values of A136406: a(n) = A136406(m,m-n) for any m >= 2n.at n=34A137504
• Number of ways to place zero or more nonadjacent 0,0 1,0 2,1 3,1 4,2 5,2 6,3 7,3 polyhexes in any orientation on a planar nXnXn triangular grid.at n=8A155423
• a(n) = 100*n^2 - 10.at n=28A158490
• G.f.: Product_{k>=1} (1 + x^k) / (1 - x^(k*(k+1)/2)).at n=43A280422
• Expansion of g.f. A(x) satisfying A(x) = 1 + 2*x*A(x)^2 - x*A(-x)^2.at n=8A368633