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Search: id:A152205
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A152205 Triangle read by rows, A000012 * A152204 +0
2
1, 4, 9, 1, 16, 4, 25, 9, 1, 36, 16, 4, 49, 25, 9, 1, 64, 36, 16, 4, 81, 49, 25, 9, 1, 100, 64, 36, 16, 4, 121, 81, 49, 25, 9, 1, 144, 100, 64, 36, 16, 4, 169, 121, 81, 49, 25, 9, 1 (list; graph; listen)
OFFSET

1,2

COMMENT

Row sums = A000292, the tetrahedral numbers.

FORMULA

A000012 * A152204 = partial sums of A152204 by columns.

EXAMPLE

First few rows of the triangle =

1;

4;

9, 1;

16, 4;

25, 9, 1;

36, 16, 4;

49, 25, 9, 1;

64, 36, 16, 4;

81, 49, 25, 9, 1;

100, 64, 36, 16, 4;

121, 81, 49, 25, 9, 1;

144, 100, 64, 36, 16, 4;

169, 121, 81, 49, 25, 9, 1;

...

CROSSREFS

A152204, A000292

Sequence in context: A133868 A070438 A070638 this_sequence A129861 A055491 A032523

Adjacent sequences: A152202 A152203 A152204 this_sequence A152206 A152207 A152208

KEYWORD

nonn,tabf

AUTHOR

Gary W. Adamson (qntmpkt(AT)yahoo.com), Nov 29 2008

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.


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