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A036233 Inverse Colombian function. +0
1
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 (list; graph; listen)
OFFSET

1,3

COMMENT

Contains only Self-Numbers, see A003052.

FORMULA

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

CROSSREFS

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

Sequence in context: A053641 A161825 A099551 this_sequence A145799 A098985 A072963

Adjacent sequences: A036230 A036231 A036232 this_sequence A036234 A036235 A036236

KEYWORD

easy,nonn

AUTHOR

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

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Last modified December 19 21:04 EST 2009. Contains 171054 sequences.


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