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A161164 Abs(the nth twin prime minus the nth non-twin prime). +0
1
1, 18, 30, 36, 40, 50, 60, 54, 56, 56, 70, 68, 70, 86, 90, 68, 70, 104, 114, 96, 112, 108, 112, 98, 112, 116, 124, 134, 138, 126, 130, 128, 132, 110, 112, 108, 114, 90, 96, 92, 94, 30, 36, 36, 46, 26, 28, 22, 20, 60, 30, 52, 44, 54, 42, 54, 50, 52, 48, 178, 164, 168, 150 (list; graph; listen)
OFFSET

1,2

FORMULA

a(n)=abs(A001097(n)-A007510(n))

EXAMPLE

a(1)=abs(3-2)=1, a(2)=abs(5-23)=abs(-18)=18, a(3)=abs(7-37)=abs(-30)=30, etc.

CROSSREFS

Cf. A001097, A007510.

Sequence in context: A032612 A151700 A154367 this_sequence A092357 A167515 A141115

Adjacent sequences: A161161 A161162 A161163 this_sequence A161165 A161166 A161167

KEYWORD

nonn,uned

AUTHOR

Juri-Stepan Gerasimov (2stepan(AT)rambler.ru), Jun 04 2009

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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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