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A074839 a(0) = 1, a(n+1) = a(n) + next prime larger than a(n). 1
1, 3, 8, 19, 42, 85, 174, 353, 712, 1431, 2864, 5743, 11492, 22989, 45982, 91971, 183968, 367939, 735888, 1471789, 2943596, 5887195, 11774408, 23548837, 47097690, 94195387, 188390808, 376781617, 753563240, 1507126509, 3014253028 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..30.

EXAMPLE

For instance 1+2=3, 3+5=8, 8+11=19, 19+23=42, 42+43=85, ...

MATHEMATICA

Needs[ "NumberTheory`NumberTheoryFunctions`" ]; NestList[ # + NextPrime[ # ] &, 1, 50 ]

CROSSREFS

Cf. A063807.

Sequence in context: A178457 A072916 A298406 * A262156 A002318 A229198

Adjacent sequences:  A074836 A074837 A074838 * A074840 A074841 A074842

KEYWORD

easy,nonn

AUTHOR

Robert G. Wilson v, Sep 09 2002

STATUS

approved

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Last modified June 17 19:57 EDT 2021. Contains 345085 sequences. (Running on oeis4.)