A156673 a(1)=0, a(n+1) is the smallest nonprime with sum of digits > sum of digits of a(n).

0, 1, 4, 6, 8, 9, 28, 38, 39, 49, 68, 69, 88, 98, 99, 289, 299, 399, 589, 689, 699, 799, 899, 999, 2899, 3899, 3999, 5899, 5999, 6999, 7999, 9899, 9999, 19999, 29999, 39999, 58999, 68999, 69999, 88999, 89999, 99999, 299899, 299999, 399999, 499999, 689999

Offset: 1

Author

Juri-Stepan Gerasimov, Feb 13 2009

Keywords

• nonn
• base

Examples

			0, 1(1>0), 4(4>1), 6(6>4), 8(8>6), 9(9>8), 28(2+8>9), 38(3+8>2+8), 39(3+9>3+8), etc.
		

Crossrefs

Cf. A067954.

Extensions

Extended by Charles R Greathouse IV, Mar 25 2010