A053161 Largest prime associated with A053095(n), or zero if no such prime exists.
2, 23, 523, 7523, 751321, 75331211, 7753211113, 977533111211, 97753332211111, 0, 997753333211111221, 99777533333211211211, 9977754333332221111111, 997775443333332211121111, 99777754443333332111212111, 0, 999777755544433333332121111121, 0, 9997777766555444333333321211112111
Offset: 1
Examples
a(7)=7753211113 because it is the largest prime consisting of the digits 2+3+5+7+11+13+17.
Links
- Chai Wah Wu, Table of n, a(n) for n = 1..298
Extensions
Edited and extended by Ray Chandler, Apr 08 2010
a(17)-a(19) from Chai Wah Wu, Mar 17 2019