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A133218 Indices of decagonal numbers which are also triangular number. +0
1
0, 1, 4, 55, 154, 1885, 5248 (list; graph; listen)
OFFSET

1,3
CROSSREFS

Cf. A077443 A077442 A133216.

Adjacent sequences: A133215 A133216 A133217 this_sequence A133219 A133220 A133221

Sequence in context: A048371 A077658 A064439 this_sequence A073352 A099122 A001500

KEYWORD

nonn

AUTHOR

Richard Choulet (richardchoulet(AT)yahoo.fr), Oct 11 2007

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Last modified October 7 14:39 EDT 2008. Contains 144666 sequences.

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