A119533 a(n+1) = prime(1+a(n)), starting with a(0) = 0.

0, 2, 5, 13, 43, 193, 1181, 9547, 99523, 1292831, 20374363, 380964631, 8300770763, 207647281343, 5890165284053, 187490458428149

Offset: 0

Author

Jonathan Vos Post, May 28 2006

Keywords

• easy
• nonn

Examples

			a(1) = prime(1+a(0)) = prime(1+0) = prime(1) = 2.
a(2) = prime(1+a(1)) = prime(1+2) = prime(3) = 5.
a(3) = prime(1+a(2)) = prime(1+5) = prime(6) = 13.
a(4) = prime(1+a(3)) = prime(1+13) = prime(14) = 43.
a(5) = prime(1+a(4)) = prime(1+43) = prime(44) = 193.
		

Crossrefs

Cf. A000040, A007097.

Programs

Mathematica

NestList[ Prime[ # + 1] &, 0, 15] (* Robert G. Wilson v, May 30 2006 *)

Formula

a(0) = 0; a(n+1) = prime(1+a(n)) = A000040(1+a(n)).

Extensions

a(15) from Robert G. Wilson v, May 30 2006