A323480 Irregular triangle read by rows: T(n,k) (n>=1) = number of runs of length k (k>=1) in n-th generation of A306211.

1, 0, 1, 1, 1, 1, 2, 2, 3, 5, 4, 9, 5, 1, 15, 6, 2, 1, 26, 7, 3, 3, 42, 9, 4, 7, 67, 12, 6, 12, 1, 108, 16, 11, 18, 3, 173, 21, 19, 26, 8, 277, 27, 31, 36, 19, 437, 35, 50, 49, 40, 684, 45, 83, 64, 77, 1067, 57, 144, 81, 136, 1661, 71, 255, 101, 226, 2588, 87

Offset: 1

Author

N. J. A. Sloane, Jan 31 2019

Keywords

• nonn
• tabf

Examples

			Triangle begins:
1,
0, 1,
1, 1,
1, 2,
2, 3,
5, 4,
9, 5, 1,
15, 6, 2, 1,
26, 7, 3, 3,
42, 9, 4, 7,
67, 12, 6, 12, 1,
108, 16, 11, 18, 3,
...
		

Links

• Lars Blomberg, Table of n, a(n) for n = 1..251 (The first 55 generations)

Crossrefs

Cf. A306211, A306215, A323477.

Extensions

a(23)-a(68) from Lars Blomberg, Feb 13 2019