A141186 (1, 2, 3, 2^2, 5, 2*3, 7, 2^3, 3^2, 2*5, 11, 2^2*3, ...) becomes (2, 3, 5, 7^11, 13, 17*19, 23, 29^31, 37^41, 41*43, 53, 59^61*67, ...).

2, 3, 5, 1977326743, 13, 323, 23, 2159424054808578564166497528588784562372597429, 19782022283855446341112457192300036270147066771005176357387103237, 2021

Offset: 1

Author

Juri-Stepan Gerasimov, Nov 08 2008

Keywords

• nonn
• less

Examples

			a(5)=7^11=1977326743.
a(7)=17*19=323,
etc.
		

Crossrefs

Cf. A141287, A141261, A143678.

Extensions

More terms from R. J. Mathar, Apr 14 2010