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A178656 The positions of products of 2 primes that are the differences of 2 primes in A002808. 0
1, 2, 4, 5, 8, 13, 15, 21, 22, 35, 38, 41, 59, 61, 63, 87, 90, 92, 107, 110, 136, 144, 155, 158, 165, 166, 215, 227, 232, 235, 240, 252, 254, 283, 286, 306, 316, 330, 360, 363, 366, 386, 398, 408, 435, 437, 438, 459, 467, 483, 507, 530, 557, 560, 568, 571, 589 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The positions of A124588(m)*A124588(k) in A002808.

LINKS

Table of n, a(n) for n=1..57.

FORMULA

A002808(a(n))=A124588(m)*A124588(k).

CROSSREFS

Sequence in context: A023745 A217136 A294944 * A085443 A164571 A238589

Adjacent sequences:  A178653 A178654 A178655 * A178657 A178658 A178659

KEYWORD

nonn

AUTHOR

Juri-Stepan Gerasimov, Jun 01 2010

EXTENSIONS

Corrected (254 inserted) by R. J. Mathar, Jun 04 2010

STATUS

approved

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Last modified April 7 10:12 EDT 2020. Contains 333300 sequences. (Running on oeis4.)