

A323480


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


2



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
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OFFSET

1,7


LINKS

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


EXAMPLE

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,
...


CROSSREFS

Cf. A306211, A306215, A323477.
Sequence in context: A086363 A174094 A284114 * A330404 A139171 A329570
Adjacent sequences: A323477 A323478 A323479 * A323481 A323482 A323483


KEYWORD

nonn,tabf


AUTHOR

N. J. A. Sloane, Jan 31 2019


EXTENSIONS

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


STATUS

approved



