1,1
Differs from A061010 in last term by 1.
Eric Weisstein's World of Mathematics, Subfactorial
Cf. A000166, A061010.
Sequence in context: A115866 A009703 A014385 this_sequence A061010 A137995 A121786
Adjacent sequences: A114482 A114483 A114484 this_sequence A114486 A114487 A114488
nonn,more
Eric Weisstein (eric(AT)weisstein.com), Nov 30, 2005
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