A216956 - OEIS

A216956

Triangle read by rows: A216955/2.

1, 1, 1, 2, 1, 1, 3, 3, 1, 1, 6, 6, 2, 1, 1, 10, 13, 5, 2, 1, 1, 20, 26, 10, 4, 2, 1, 1, 37, 55, 19, 9, 4, 2, 1, 1, 74, 107, 41, 18, 8, 4, 2, 1, 1, 143, 219, 82, 35, 17, 8, 4, 2, 1, 1, 286, 438, 164, 70, 34, 16, 8, 4, 2, 1, 1, 562, 881, 330, 143, 67, 33, 16, 8, 4, 2, 1, 1, 1124, 1762, 660, 286, 134, 66, 32, 16, 8, 4, 2, 1, 1

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OFFSET

1,4

COMMENTS

It appears that reversed rows converge to A011782. - Omar E. Pol, Nov 20 2012

LINKS

Table of n, a(n) for n=1..91.

B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, arXiv:1212.6102, Dec 25 2012.

B. Chaffin, J. P. Linderman, N. J. A. Sloane and Allan Wilks, On Curling Numbers of Integer Sequences, Journal of Integer Sequences, Vol. 16 (2013), Article 13.4.3.

Index entries for sequences related to curling numbers

EXAMPLE

Triangle begins:

1, 1,

2, 1, 1,

3, 3, 1, 1,

6, 6, 2, 1, 1,

10, 13, 5, 2, 1, 1,

20, 26, 10, 4, 2, 1, 1,

37, 55, 19, 9, 4, 2, 1, 1,

74, 107, 41, 18, 8, 4, 2, 1, 1,

...