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Search: id:A161777
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A161777 nth nonprime*(nth nonprime-1)/2 +0
1
0, 6, 15, 28, 36, 45, 65, 91, 105, 120, 153, 190, 210, 231, 276, 300, 325, 351, 378, 435, 496, 528, 561, 595, 630, 703, 741, 780, 861, 946, 990, 1035, 1128, 1176, 1225, 1275, 1326, 1431, 1485, 1540, 1596, 1653, 1770, 1891, 1953, 2016, 2080, 2145, 2278, 2346 (list; graph; listen)
OFFSET

1,2

CROSSREFS

Cf. A000217, A018252.

Sequence in context: A140091 A165454 A063525 this_sequence A117519 A091012 A058008

Adjacent sequences: A161774 A161775 A161776 this_sequence A161778 A161779 A161780

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jun 19 2009

EXTENSIONS

Edited by N. J. A. Sloane, Jun 23 2009

page 1

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.


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