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A163061 Sum of the first n primes plus the first n nonprimes. 0
2, 6, 15, 28, 47, 69, 96, 127, 164, 208, 255, 310, 371, 435, 504, 581, 665, 752, 846, 945, 1048, 1159, 1275, 1398, 1530, 1667, 1808, 1954, 2103, 2258, 2429, 2605, 2788, 2975, 3173, 3374, 3582, 3797, 4018, 4246, 4481, 4719, 4968, 5221, 5480, 5742 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

FORMULA

a(n)=A007504(n)+A051349(n-1).

EXAMPLE

a(1)=2+0=2. a(2)=5+1=6. a(3)=10+5=15. a(4)=17+11=28. a(5)=28+19=47. a(6)=41+28=69. a(7)=58+38=96.

CROSSREFS

Cf. A000040, A141468, A007504, A051349.

Sequence in context: A091766 A192691 A138621 * A033286 A182724 A098651

Adjacent sequences:  A163058 A163059 A163060 * A163062 A163063 A163064

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jul 21 2009

EXTENSIONS

Formula index corrected, 1119 replaced by 1159 - R. J. Mathar (mathar(AT)strw.leidenuniv.nl), Jul 27 2009

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Last modified February 14 01:35 EST 2012. Contains 205567 sequences.