A156768 a(1)=2, a(n+1) is the smallest prime > n + smallest digit of n-th prime*smallest digit of n.

2, 5, 11, 19, 37, 11, 13, 17, 17, 29, 11, 13, 17, 17, 19, 23, 23, 23, 23, 29, 23, 29, 37, 31, 41, 41, 29, 29, 29, 31, 31, 37, 37, 37, 41, 41, 41, 41, 43, 43, 41, 43, 47, 47, 53, 53, 53, 53, 59, 59, 53, 59, 59, 59, 59, 67, 67, 71, 67, 71, 61, 67, 67, 67, 71, 71, 73, 79, 89, 89

Offset: 1

Author

Juri-Stepan Gerasimov, Feb 15 2009

Keywords

• nonn
• base
• less

Examples

			2, 3(=3=1+2*1), 11(>8=2+3*2), 7(=7=3+1*4), 37(>32=4+7*4), etc.
		

Crossrefs

Cf. A000040, A156672.

Extensions

Corrected by R. J. Mathar, Feb 26 2009