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A097643
Numbers n such that n=(d_1!!+d_2!!+...+d_k!!)-(d_1+d_2+...+d_k) where d_1 d_2 ... d_k is the decimal expansion of n.
4
4, 46, 478, 944
OFFSET
1,1
EXAMPLE
944 is in the sequence because 944=(9!!+4!!+4!!)-(9+4+4).
CROSSREFS
Cf. A097642.
Sequence in context: A173716 A320229 A097952 * A155652 A222098 A197131
KEYWORD
fini,full,base,nonn
AUTHOR
Farideh Firoozbakht, Aug 23 2004
STATUS
approved