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A048910 Indices of 9-gonal numbers which are also square. +0
2
1, 2, 18, 49, 529, 1458, 15842, 43681, 474721, 1308962, 14225778, 39225169, 426298609, 1175446098, 12774732482, 35224157761, 382815675841, 1055549286722, 11471695542738, 31631254443889, 343768050606289 (list; graph; listen)
OFFSET

1,2

LINKS

Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.

CROSSREFS

Cf. A048911, A036411.

Adjacent sequences: A048907 A048908 A048909 this_sequence A048911 A048912 A048913

Sequence in context: A126909 A139268 A052681 this_sequence A077591 A050808 A058653

KEYWORD

nonn

AUTHOR

Eric Weisstein (eric(AT)weisstein.com)

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Last modified November 8 07:45 EST 2009. Contains 166143 sequences.


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