A179512 a(1) = 12, a(n) = prime(a(n-1)) - 2a(n-1).

12, 13, 15, 17, 25, 47, 117, 409, 1985, 13269, 116555, 1301043, 17911307, 296651169, 5792367991, 131137897895, 3395020992813, 99343099511585

Offset: 1

Author

Robert G. Wilson v, Jul 17 2010

Keywords

• nonn

Crossrefs

Cf. A007097, A074271, A179274, A179511, A179513, A179514, A179515, A179516, A179517, A179518.

Programs

Mathematica

NestList[ Prime@# - 2# &, 12, 17]