A224843 - OEIS

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A224843

Primes p = prime(k) such that the representation of p can be split in two parts whose sum is k.

131, 64279, 64319, 64483, 64513, 64621, 10708553, 211689713, 1473469351, 14655469571, 16744452731, 20921000803, 1868659342061, 2075982751859, 2490551934503, 3112244742829

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OFFSET

1,1

COMMENTS

a(17) > 4*10^12.

LINKS

Table of n, a(n) for n=1..16.

EXAMPLE

prime(20+921000803) = 20921000803.

MATHEMATICA

Reap[Do[k = 1; p = Prime@n; While[(k *= 10) < p, If[Mod[p, k] + Floor[p/k] == n, Sow@p]], {n, 9000}]][[2, 1]]

CROSSREFS

Cf. A112013, A224827.

Sequence in context: A239252 A200736 A287071 * A033530 A222876 A267720

Adjacent sequences: A224840 A224841 A224842 * A224844 A224845 A224846

KEYWORD

nonn,base

AUTHOR

Giovanni Resta, Jul 22 2013

STATUS

approved