A090844 Square array of numbers read by antidiagonals with T(n,k)=((k+3)(k+1)^n-2*0^n)/(k+1).
1, 1, 3, 1, 4, 3, 1, 5, 8, 3, 1, 6, 15, 16, 3, 1, 7, 24, 45, 32, 3, 1, 8, 35, 96, 135, 64, 3, 1, 9, 48, 175, 384, 405, 128, 3, 1, 10, 63, 288, 875, 1536, 1215, 256, 3, 1, 11, 80, 441, 1728, 4375, 6144, 3645, 512, 3, 1, 12, 99, 640, 3087, 10368, 21875, 24576, 10935, 1024, 3, 1
Offset: 0
Examples
Rows begin 1 3 3 3 3 ... 1 4 8 16 32 ... 1 5 15 45 135 ... 1 6 24 96 384 ... 1 7 35 175 875 ...
References
- L. He, X. Liu and G. Strang, (2003) Trees with Cantor Eigenvalue Distribution. Studies in Applied Mathematics 110 (2), 123-138
Comments