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Search: id:A157191
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A157191 Indices of records in A157190: prime(a(n)) can be written in more ways as pq-p-q (p,q, prime) than any smaller prime. +0
1
1, 2, 17, 20, 190, 357, 959, 4479, 10522, 16447, 21383, 22993, 37977, 53972, 129076, 205244, 440069, 745584, 830983, 918422, 1073653, 2309722, 2731757, 3833005, 4788328, 5025102, 5411333 (list; graph; listen)
OFFSET

1,2
FORMULA

A157191 = A000720 o A157190 ; A157190 = A000040 o A157191.

CROSSREFS

Sequence in context: A107139 A042055 A075683 this_sequence A006029 A126961 A106622

Adjacent sequences: A157188 A157189 A157190 this_sequence A157192 A157193 A157194

KEYWORD

nonn

AUTHOR

M. F. Hasler (MHasler(AT)univ-ag.fr), Mar 16 2009

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

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