The On-Line Encyclopedia of Integer Sequences (OEIS)

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A155954 revision #3

A155954

a(0)=2, a(1)=3, a(2)=5, a(n)=smallest prime greater or equal to a(n-1)+a(n-2)+a(n-3)

2, 3, 5, 11, 19, 37, 67, 127, 233, 431, 797, 1471, 2699, 4967, 9137, 16811, 30931, 56891, 104639, 192461, 354001, 651103, 1197571, 2202677, 4051361, 7451617, 13705667, 25208653, 46365959, 85280323, 156854959, 288501287, 530636569

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OFFSET

0,1

LINKS

Table of n, a(n) for n=0..32.

EXAMPLE

a(2)+a(3)+a(4)=35, so a(5)=smallest prime larger than 35=37

MAPLE

a[0] := 2: a[1] := 3: a[2] := 5: for n from 3 to 35 do a[n] := nextprime(a[n-1]+a[n-2]+a[n-3]-1) end do: seq(a[n], n = 0 .. 35); [From Emeric Deutsch, Feb 27 2009]

CROSSREFS

Sequence in context: A084697 A037082 A084573 * A358717 A337347 A087581

Adjacent sequences: A155951 A155952 A155953 * A155955 A155956 A155957

KEYWORD

nonn

AUTHOR

Avik Roy (avik_3.1416(AT)yahoo.co.in), Jan 31 2009

EXTENSIONS

More terms from Emeric Deutsch, Feb 27 2009

STATUS

approved