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A157190 Primes which produce records in A157188, at index i=pi(a(n)) (pi=A000720). 4
2, 3, 59, 71, 1151, 2399, 7559, 42839, 110879, 181439, 241919, 262079, 453599, 665279, 1713599, 2827439, 6425999, 11309759, 12700799, 14137199, 16707599, 37837799, 45239039, 64864799, 82162079, 86486399, 93562559, 260124479 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Primes that can be written in more ways as p*q-(p+q) (p,q prime) than any smaller prime.

LINKS

M. F. Hasler, Table of n, a(n), for n=1,...,41.

C. Rivera (Ed.), Puzzle 482: Two Bergot questions, March 2009.

FORMULA

A157187(a(n)) = A157188(A000720(a(n))) > A157187(p) for all primes p < a(n).

CROSSREFS

Cf. A157187-A157189

Sequence in context: A141509 A054313 A080052 * A152657 A299172 A154253

Adjacent sequences:  A157187 A157188 A157189 * A157191 A157192 A157193

KEYWORD

nonn

AUTHOR

M. F. Hasler, Mar 11 2009

EXTENSIONS

Corrected a(28) M. F. Hasler, Mar 15 2009

STATUS

approved

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Last modified May 16 06:43 EDT 2022. Contains 353693 sequences. (Running on oeis4.)