A144565 a(n) is the smallest composite number > a(n-1) that contains the n-th prime as a substring.

12, 30, 35, 57, 110, 130, 170, 190, 230, 290, 310, 370, 410, 430, 447, 453, 459, 561, 567, 671, 730, 779, 783, 789, 897, 1010, 1030, 1070, 1090, 1113, 1127, 1131, 1137, 1139, 1149, 1510, 1570, 1630, 1670, 1730, 1790, 1810, 1910, 1930, 1970, 1990, 2110

Offset: 1

Author

Eric Angelini, May 01 2010

Keywords

• nonn
• base

Examples

			S = 12,30,35,57,110,130,170,190,230,290,310,370,410,430,447,...
p = .2.3...5..7.11..13..17..19..23..29..31..37..41..43...47...
		

Crossrefs

Cf. A169798.

Cf. A177981, A177982. [Reinhard Zumkeller, May 16 2010]

Formula

a(n) <= 10*n. [Reinhard Zumkeller, May 16 2010]

Extensions

Typo in example corrected by D. S. McNeil, May 16 2010

Corrected and extended by D. S. McNeil and Reinhard Zumkeller, May 16 2010