A036233 Inverse Colombian function.

1, 1, 3, 1, 5, 3, 7, 1, 9, 5, 5, 3, 5, 7, 3, 1, 5, 9, 7, 20, 3, 20, 1, 3, 5, 20, 9, 1, 7, 3, 31, 5, 3, 20, 31, 9, 5, 1, 3, 7, 20, 42, 31, 7, 9, 20, 5, 42, 1, 31, 3, 7, 53, 9, 31, 20, 3, 5, 7, 42, 53, 1, 9, 64, 31, 42, 20, 53, 3, 1, 5, 9, 7, 64, 75, 31, 1, 42, 5, 20, 9, 53, 7, 3, 64, 86, 75, 20

Offset

1,3

Comments

a(n) is the smallest x with n in the digit summing sequence starting with x.

Contains only self-numbers, see A003052.

Links

Sean A. Irvine, Table of n, a(n) for n = 1..10000

Sean A. Irvine, Java program (github)

Crossrefs

Cf. A004207, A016052, A007618, A006507, A016052.

Sequence in context: A099551 A211206 A330717 * A145799 A331804 A244568

Adjacent sequences: A036230 A036231 A036232 * A036234 A036235 A036236

Keyword

easy,nonn,base

Author

Miklos SZABO (mike(AT)ludens.elte.hu)

Status

approved