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A127159 Triangle T(n,k) with T(n,k)=A061554(n,k)+A107430(n,k). 0
2, 2, 2, 3, 2, 3, 4, 4, 4, 4, 7, 5, 8, 5, 7, 11, 11, 10, 10, 11, 11, 21, 16, 21, 12, 21, 16, 21, 36, 36, 28, 28, 28, 28, 36, 36, 71, 57, 64, 36, 56, 36, 64, 57, 71, 127, 127, 93, 93, 72, 72, 93, 93, 127, 127, 253, 211, 220, 130, 165, 90, 165, 130, 220, 211, 253 (list; table; graph; refs; listen; history; text; internal format)
OFFSET

0,1

LINKS

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

FORMULA

Sum_{k, 0<=k<=n}T(n,k)=2^(n+1).

EXAMPLE

Triangle begins:

2;

2, 2;

3, 2, 3;

4, 4, 4, 4;

7, 5, 8, 5, 7;

11, 11, 10, 10, 11, 11;

21, 16, 21, 12, 21, 16, 21;

36, 36, 28, 28, 28, 28, 36, 36;

71, 57, 64, 36, 56, 36, 64, 57, 71;...

CROSSREFS

Sequence in context: A143976 A194296 A194336 * A025128 A058769 A194312

Adjacent sequences:  A127156 A127157 A127158 * A127160 A127161 A127162

KEYWORD

nonn,tabl

AUTHOR

Philippe Deléham, Mar 25 2007

STATUS

approved

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Last modified July 22 15:23 EDT 2019. Contains 325224 sequences. (Running on oeis4.)