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A130167 Another version of triangle in A127743. 2
1, 0, 1, 0, 1, 1, 0, 2, 2, 1, 0, 6, 5, 3, 1, 0, 22, 16, 9, 4, 1, 0, 92, 60, 31, 14, 5, 1, 0, 426, 252, 120, 52, 20, 6, 1, 0, 2146, 1160, 510, 209, 80, 27, 7, 1, 0, 11624, 5776, 2348, 904, 335, 116, 35, 8, 1, 0, 67146, 30832, 11610, 4184, 1481, 507, 161, 44, 9, 1 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,8

COMMENTS

Triangle T(n,k), 0 <= k <= n, read by rows given by [0,1,1,2,1,3,1,4,1,5,1,6,1,...] DELTA [1,0,0,0,0,0,0,...] where DELTA is the operator defined in A084938.

Modulo 2, this sequence gives A106344. - Philippe Deléham, Dec 18 2008

A154380*A130595 as infinite lower triangular matrices. - Philippe Deléham, Jan 13 2009

LINKS

Table of n, a(n) for n=0..65.

FORMULA

Sum_{k=0..n} T(n,k) = A000110(n).

EXAMPLE

Triangle begins:

  1;

  0,  1;

  0,  1,  1;

  0,  2,  2,  1;

  0,  6,  5,  3,  1;

  0, 22, 16,  9,  4,  1;

  0, 92, 60, 31, 14,  5,  1; ...

CROSSREFS

Cf. A074664.

Sequence in context: A258829 A110314 A152882 * A084938 A135898 A131182

Adjacent sequences:  A130164 A130165 A130166 * A130168 A130169 A130170

KEYWORD

nonn,tabl

AUTHOR

Philippe Deléham, Aug 03 2007

STATUS

approved

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Last modified August 9 04:39 EDT 2020. Contains 336319 sequences. (Running on oeis4.)