1,1

All entries are in A001358.

Table of n, a(n) for n=1..71.

a(n) = A014612(n)/A162361(n).

a(1)=2*2*2/2=4. a(2)=2*2*3/2=6. a(3)=2*3*3/3=6. a(4)=2*2*5/2=10. a(5)=3*3*3/3 = 9.

Cf. A014612, A162361.

Sequence in context: A159475 A098350 A276269 * A058640 A075653 A075656

Adjacent sequences: A163170 A163171 A163172 * A163174 A163175 A163176

nonn

Juri-Stepan Gerasimov, Jul 22 2009

a(57) corrected by R. J. Mathar, Jul 25 2009

approved