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A139409 Numbers n such that n=d_1!!^2+d_2!!^2+...+d_k!!^2 where d_1d_2...d_k is the decimal expansion of n. 0
1, 11037, 158712, 904117, 906373 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

906373=9!!^2+0!!^2+6!!^2+3!!^2+7!!^2+3!!^2.

CROSSREFS

Sequence in context: A325311 A164518 A198208 * A233789 A236151 A032427

Adjacent sequences:  A139406 A139407 A139408 * A139410 A139411 A139412

KEYWORD

base,fini,full,nonn

AUTHOR

Farideh Firoozbakht, May 08 2008

STATUS

approved

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Last modified June 24 11:36 EDT 2021. Contains 345416 sequences. (Running on oeis4.)