126016
domain: N
Appears in sequences
- A symmetrical triangle of polynomial coefficients that are von Koch like: b=1/4; p(x, n) = If[Mod[n, 4] == 2, (b*x - n/2)*p(x, n - 1), If[ Mod[n, 4] == 3, (x/2 - b*n + 1/2)*p(x, n - 1), If[ Mod[n, 4] == 0, (-b*x - n/2 + b)*p(x, n - 1), (x/2 + b*n)*p(x, n - 1)]]]; q(x,n)=(p(x,n)+x^n*(p(1/x,n))/b^n.at n=36A155688
- Number of (n+2) X (2+2) 0..3 arrays with every 3 X 3 subblock row and diagonal sum equal to 0 2 3 6 or 7 and every 3 X 3 column and antidiagonal sum not equal to 0 2 3 6 or 7.at n=16A252526
- 25-gonal pyramidal numbers: a(n) = n*(n+1)*(23*n-20)/6.at n=32A256645
- Detour index of the n-hypercube graph.at n=6A288720
- Detour index of the n-cube-connected cycle graph.at n=1A296777
- Detour index of the n X n grid graph.at n=7A296779
- Detour index of the n X n X n grid graph.at n=3A296780
- Detour index for the n X n torus grid graph.at n=5A296784