

A267692


Terms of A030461 that give successive gap records.


2



23, 3137, 199211, 523541, 16691693, 1393313963, 2428124317, 3498135023, 4028940343, 191353191413, 221327221393, 507217507289, 843911844001, 25654632565559, 55778515577959, 82237498223863, 1127656111276687, 1280935912809491, 2038858320388727, 3338451733384667, 5272111352721287, 9280102992801209
(list;
graph;
refs;
listen;
history;
text;
internal format)



OFFSET

1,1


COMMENTS

Subsequence of A030461.


LINKS

JeanMarc Rebert, Table of n, a(n) for n = 1..23


EXAMPLE

a(1) = A030461(1) = 23. gap = 3  2 = 1.
a(2) = 3137, because 3137 is the first term in A030461 > 23, with gap = 37  31 = 6 > 1.
a(3) = 199211, because 199211 is the first term in A030461 > 3137, with gap = 211  199 = 12 > 6.


MATHEMATICA

Reap[For[record = 0; p = 2, p < 10^8, p = NextPrime[p], If[PrimeQ[pp = FromDigits[Join[IntegerDigits[p], IntegerDigits[np = NextPrime[p]]]]], If[np  p > record, record = np  p; Print[pp]; Sow[pp]]]]][[2, 1]] (* JeanFrançois Alcover, Mar 02 2016 *)


CROSSREFS

Cf. A030461, A267721.
Sequence in context: A088385 A030461 A152521 * A136363 A290786 A248335
Adjacent sequences: A267689 A267690 A267691 * A267693 A267694 A267695


KEYWORD

base,nonn


AUTHOR

JeanMarc Rebert, Jan 19 2016


STATUS

approved



