A303576 a(n) = prime arising when A231442(n+1) is formed (if there is more than one, use the smallest).

13, 23, 29, 59, 151, 181, 281, 241, 47, 67, 601, 1013, 1153, 1451, 1471, 1187, 1861, 1619, 1129, 2221, 2203, 2003, 2203, 2243, 4229, 2269, 2267, 5227, 1523, 1283, 2383, 2333, 3253, 6353, 3463, 3347, 3739, 3389, 1483, 2441, 4243, 5443, 4457, 4447, 4451, 4051

Offset: 1

Author

N. J. A. Sloane, Apr 27 2018

Keywords

• nonn
• base

Comments

Let A231442(n) = X, A231442(n+1) = Y. The digits of X and Y can be rearranged to form a prime, possibly in several ways; a(n) is the smallest such prime.

Links

• Rémy Sigrist, Table of n, a(n) for n = 1..10000
• Rémy Sigrist, C++ program for A303576

Crossrefs

Cf. A231442.

Extensions

More terms from Rémy Sigrist, Apr 29 2018