1,2

Table of n, a(n) for n=1..6.

Cf. A002105, A117514, A117513.

Sequence in context: A052613 A156493 A218891 * A265936 A085865 A300099

Adjacent sequences: A117512 A117513 A117514 * A117516 A117517 A117518

nonn

Nan Zang (nzang(AT)cs.ucsd.edu), Apr 28 2006

approved