1,1
Table of n, a(n) for n=1..8.
a(1) = 4 because 4 = 0! + 1! + 2!;
a(2) = 9 because 9 = 1! + 2! + 3!;
a(3) = 27 because 27 = 1! + 2! + 4!.
Sequence in context: A168363 A182046 A171468 * A115697 A075783 A098121
Adjacent sequences: A114374 A114375 A114376 * A114378 A114379 A114380
nonn
Giovanni Teofilatto, Feb 10 2006
Offset corrected by Arkadiusz Wesolowski, Mar 06 2013
approved
