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A158611 0, 1 and the primes. +0
25
0, 1, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97, 101, 103, 107, 109, 113, 127, 131, 137, 139, 149, 151, 157, 163, 167, 173, 179, 181, 191, 193, 197, 199, 211, 223, 227 (list; graph; listen)
OFFSET

1,3

COMMENT

Essentially a duplicate of A008578. - N. J. A. Sloane, Mar 27 2009

Or, nonnegative non-composite numbers. [From Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Nov 22 2009, Dec 12 2009]

FORMULA

a(n) = A008578(n-1), n>1.

CROSSREFS

A158611 U A002808 = A141468 U A000040 = A001477. - Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Sep 27 2009

Cf. A008578.

KEYWORD

nonn,new

AUTHOR

Jaroslav Krizek (jaroslav.krizek(AT)atlas.cz), Mar 22 2009

EXTENSIONS

Edited by R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Aug 21 2009

Further edited by R. J. Mathar, Klaus Brockhaus and N. J. A. Sloane, Sep 13 2009

page 1

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.


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