A140791 First occurrence of prime gap 10*n.

139, 887, 4297, 19333, 31907, 43331, 173359, 542603, 404851, 396733, 1468277, 1895359, 5518687, 7621259, 13626257, 33803689, 27915737, 17051707, 142414669, 378043979, 20831323, 47326693, 607010093, 391995431, 387096133, 944192807

Offset: 1

Author

Lekraj Beedassy, Jul 14 2008

Keywords

• nonn

References

• J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 139, pp 47, Ellipses, Paris 2008.

Links

• Index entries for primes, gaps between.

Crossrefs

Cf. A101232, A062529, A000230.

Formula

a(n)=A000230(5n), a(3n) = A224522(n) = A058193(5n). - M. F. Hasler, Apr 09 2013

Extensions

Offset corrected by Arkadiusz Wesolowski, Jun 07 2011