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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. 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; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..27.

FORMULA

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

CROSSREFS

Sequence in context: A075683 A340044 A309055 * A006029 A332094 A126961

Adjacent sequences: A157188 A157189 A157190 * A157192 A157193 A157194

KEYWORD

nonn

AUTHOR

M. F. Hasler, Mar 16 2009

STATUS

approved

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Last modified March 25 01:20 EDT 2023. Contains 361511 sequences. (Running on oeis4.)