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A195670 Numbers that can be written using its own digits in order and by using addition and factorial operators. 0
144, 145, 733, 5160, 5161, 5162, 5163, 5164, 5165, 5166, 5167, 5168, 5169, 40440, 40441, 40442, 40443, 40444, 40445, 40446, 40447, 40448, 40449, 40584, 40585 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..25.

Erich Friedman, Problem of the month August 2003

EXAMPLE

144 = (1 + 4)! + 4!

145 = 1 + 4! + 5!

5160 = 5 + (1 + 6)! + 0

40440 = (4 + 0!)! + (4 + 4)! + 0

40584 = (4 + 0!)! + 5! + 8! + 4!

40585 = 4! + 0! + 5! + 8! + 5!

CROSSREFS

Sequence in context: A124512 A199546 A101936 * A173065 A044868 A162532

Adjacent sequences:  A195667 A195668 A195669 * A195671 A195672 A195673

KEYWORD

nonn,base

AUTHOR

Kausthub Gudipati, Sep 22 2011

STATUS

approved

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Last modified August 20 13:04 EDT 2017. Contains 290835 sequences.