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A073022 Each term is the smallest prime > the sum of the previous 2 terms. +0
2
1, 1, 3, 5, 11, 17, 29, 47, 79, 127, 211, 347, 563, 911, 1481, 2393, 3877, 6271, 10151, 16427, 26591, 43019, 69623, 112643, 182279, 294923, 477209, 772139, 1249361, 2021501, 3270863, 5292367, 8563237, 13855607, 22418849, 36274471, 58693331 (list; graph; listen)
OFFSET

0,3

FORMULA

a(n+1)=nextprime(a(n)+a(n-1))

EXAMPLE

After 1,1, the next prime >2 is 3.

PROGRAM

(PARI) l=1; h=1; print1("1, 1, "); while(l<2^32, t=l+h+1; while(!isprime(t), t+=1); print1(t, ", "); l=h; h=t)

CROSSREFS

Cf. A055498.

Sequence in context: A096292 A078864 A023218 this_sequence A129694 A108402 A090795

Adjacent sequences: A073019 A073020 A073021 this_sequence A073023 A073024 A073025

KEYWORD

nonn

AUTHOR

Phil Carmody (pc+oeis(AT)asdf.org), Aug 15 2002

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.


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