1,1

a(n)=A006530(A055394(n)).

Table of n, a(n) for n=1..72.

Cf. A078375.

Sequence in context: A193724 A266407 A249273 * A226123 A224166 A216052

Adjacent sequences: A078373 A078374 A078375 * A078377 A078378 A078379

nonn

Reinhard Zumkeller, Nov 25 2002

approved