A094209 Numbers n such that the sum of n's digits times the sum of the factorials of n's digits is equal to n.

1, 224, 441, 21660, 26406

Offset

1,2

Comments

There are no further terms. - Farideh Firoozbakht, Apr 16 2008

Links

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

Example

(4 + 4 + 1)*(4! + 4! + 1!) = 441.

Mathematica

f[n_] := Plus @@ (Factorial /@ IntegerDigits[n])Plus @@ IntegerDigits[n]; Select[ Range[ 10^7], f[ # ] == # &] (* Robert G. Wilson v, May 29 2004 *)

Crossrefs

Cf. A005188.

Sequence in context: A177770 A202442 A331371 * A158227 A061524 A156813

Adjacent sequences: A094206 A094207 A094208 * A094210 A094211 A094212

Keyword

base,nonn,fini,full

Author

Jason Earls, May 27 2004

Status

approved