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A139180 Smallest number m greater than 1 such that m=(Sum_{i=1..k} d_i!)^n where d_1 d_2 ... d_k is the decimal expansion of m, or 0 if no m exists. 2
2, 172603687936, 3910825640696988096, 396867211295273131775761, 13586030059671762261567625351, 4218282992523473247642107344280879104, 5572272365289149102816175194628254483025277 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

A139181(n)=A139180(n)^(1/n).

EXAMPLE

172603687936=(1!+7!+2!+6!+0!+3!+6!+8!+7!+9!+3!+6!)^2

CROSSREFS

Cf. A014080, A137604, A137605.

Sequence in context: A154423 A072293 A158343 * A072947 A077303 A185703

Adjacent sequences:  A139177 A139178 A139179 * A139181 A139182 A139183

KEYWORD

base,nonn

AUTHOR

Farideh Firoozbakht (mymontain(AT)yahoo.com), Apr 22 2008

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Last modified February 14 23:53 EST 2012. Contains 205689 sequences.