A098408 a(1) = 1; for n>1, a(n) = smallest number > a(n-1) such that last digit of a(n-1) + first digit of a(n) = 3.

1, 2, 10, 30, 31, 200, 300, 301, 2000, 3000, 3001, 20000, 30000, 30001, 200000, 300000, 300001, 2000000, 3000000, 3000001, 20000000, 30000000, 30000001, 200000000, 300000000, 300000001, 2000000000, 3000000000, 3000000001, 20000000000, 30000000000, 30000000001

Offset

1,2

Links

Table of n, a(n) for n=1..32.

Crossrefs

Sequence in context: A133485 A215954 A098425 * A063564 A076440 A047198

Adjacent sequences: A098405 A098406 A098407 * A098409 A098410 A098411

Keyword

base,easy,nonn

Author

Eric Angelini, Oct 26 2004

Extensions

Edited by N. J. A. Sloane following email from Zak Seidov, Mar 05 2005

More terms from Joshua Zucker, Jun 21 2006

More terms from Sean A. Irvine, Nov 01 2025

Status

approved