1,2
Table of n, a(n) for n=1..27.
A157191 = A000720 o A157190 ; A157190 = A000040 o A157191.
Sequence in context: A075683 A340044 A309055 * A006029 A332094 A126961
Adjacent sequences: A157188 A157189 A157190 * A157192 A157193 A157194
nonn
M. F. Hasler, Mar 16 2009
approved