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A083550 Product of 2 consecutive prime differences of two successive terms of A001223. +0
1
2, 4, 8, 8, 8, 8, 8, 24, 12, 12, 24, 8, 8, 24, 36, 12, 12, 24, 8, 12, 24, 24, 48, 32, 8, 8, 8, 8, 56, 56, 24, 12, 20, 20, 12, 36, 24, 24, 36, 12, 20, 20, 8, 8, 24, 144, 48, 8, 8, 24, 12, 20, 60, 36, 36, 12, 12, 24, 8, 20, 140, 56, 8, 8, 56, 84, 60, 20, 8, 24, 48, 48, 36, 24, 24, 48 (list; graph; listen)
OFFSET

1,1

FORMULA

a(n)=A001223[n].A001223[n+1]=[p(n+1)-p(n)].[p(n+2)-p(n+1)]

MATHEMATICA

f[x_] := Prime[x+1]-Prime[x] Table[f[w+1]*f[w], {w, 1, 128}]

CROSSREFS

Cf. A001223, A083538-A083555, A057467.

Sequence in context: A113419 A133007 A141532 this_sequence A160161 A129279 A008496

Adjacent sequences: A083547 A083548 A083549 this_sequence A083551 A083552 A083553

KEYWORD

nonn

AUTHOR

Labos E. (labos(AT)ana.sote.hu), May 22 2003

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Last modified December 21 10:15 EST 2009. Contains 171081 sequences.


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