1,2
Table of n, a(n) for n=1..18.
Cf. A186277.
Sequence in context: A061770 A210449 A080639 * A047483 A339309 A167408
Adjacent sequences: A186303 A186304 A186305 * A186307 A186308 A186309
nonn
Artur Jasinski, Feb 17 2011
approved