A131243 A065941^2 as an infinite lower triangular matrix.

1, 2, 1, 3, 2, 1, 5, 4, 4, 1, 8, 7, 10, 4, 1, 13, 12, 23, 12, 6, 1, 21, 20, 48, 29, 21, 6, 1, 34, 33, 96, 64, 62, 24, 8, 1, 55, 54, 185, 132, 160, 74, 36, 8, 1, 89, 88, 348, 261, 382, 200, 130, 40, 10, 1, 144, 143, 642, 500, 859, 492, 400, 150, 55, 10, 1

Offset

0,2

Comments

Left border, Fibonacci numbers; next border to the right, (Fibonacci numbers - 1).

Links

Hakan Icoz, Rows 0..100, flattened

Example

First few rows of the triangle:
   1;
   2,  1;
   3,  2,   1;
   5,  4,   4,   1;
   8,  7,  10,   4,   1;
  13, 12,  23,  12,   6,   1;
  21, 20,  48,  29,  21,   6,   1;
  34, 33,  96,  64,  62,  24,   8,  1;
  55, 54, 185, 132, 160,  74,  36,  8,  1;
  89, 88, 348, 261, 382, 200, 130, 40, 10, 1;

Crossrefs

Cf. A065941, A131244 (row sums), A131245, A131246.

Sequence in context: A246105 A211980 A171730 * A038497 A091355 A131245

Adjacent sequences: A131240 A131241 A131242 * A131244 A131245 A131246

Keyword

nonn,tabl

Author

Gary W. Adamson, Jun 22 2007

Extensions

Data and Example corrected by Jon E. Schoenfield, Feb 26 2022

More terms from Hakan Icoz, Jan 23 2023

Status

approved