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Search: id:A122628
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A122628 t(n)_t(n) where t() = triangular numbers A000217. +0
1
1, 3, 6, 10, 20, 43, 64, 114, 185, 280, 402, 554, 820, 11030, 14640, 18910, 24177, 30439, 37810, 88410, 107416, 129286, 154290, 270000, 317530, 371359, 431306, 659350, 758210, 867695, 988534, 1394984, 1576972, 1775485, 2383290, 2665338, 3459466, 3846532 (list; graph; listen)
OFFSET

1,2

COMMENT

See A122618 for notation.

CROSSREFS

Sequence in context: A065614 A058356 A018171 this_sequence A068865 A060179 A056411

Adjacent sequences: A122625 A122626 A122627 this_sequence A122629 A122630 A122631

KEYWORD

nonn,base

AUTHOR

njas, Sep 21 2006

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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