A097653 Numbers n such that n=d_1!!+d_2!!+...+d_k!! where d_1 d_2 ... d_k is the decimal expansion of n.

1, 2, 3, 107

Offset: 1

Author

Farideh Firoozbakht, Sep 10 2004

Keywords

• base
• fini
• full
• nonn

Examples

			107 is in the sequence because 1!!+0!!+7!!=1+1+7*5*3*1=107.
		

Crossrefs

Cf. A097654, A097655, A097643.

Programs

Mathematica

Do[h=IntegerDigits[n];l=Length[h];If[n==Sum[h[[k]]!!, {k, l}], Print[n]], {n, 4*9!!}]