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Search: id:A137831
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A137831 (Prime(n)^2 minus its last digit)/20. +0
1
0, 0, 1, 2, 6, 8, 14, 18, 26, 42, 48, 68, 84, 92, 110, 140, 174, 186, 224, 252, 266, 312, 344, 396, 470, 510, 530, 572, 594, 638, 806, 858, 938, 966, 1110, 1140, 1232, 1328, 1394, 1496, 1602, 1638, 1824, 1862, 1940, 1980, 2226, 2486, 2576, 2622, 2714, 2856 (list; graph; listen)
OFFSET

1,4

FORMULA

a(n) = (A001248(n)-A137807(n))/20. - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 23 2008

CROSSREFS

Sequence in context: A109440 A063242 A104636 this_sequence A117588 A022112 A107019

Adjacent sequences: A137828 A137829 A137830 this_sequence A137832 A137833 A137834

KEYWORD

nonn,base,easy

AUTHOR

Paul Curtz (bpcrtz(AT)free.fr), Apr 29 2008

EXTENSIONS

More terms from R. J. Mathar (mathar(AT)strw.leidenuniv.nl), May 23 2008

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.


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