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, 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

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