1,2

a(n) = A115855(n+1) - A115855(n);

a(A000040(n)-1) = A000041(A000040(n))-1.

Cf. A116085.

Sequence in context: A134004 A123631 A018060 this_sequence A032231 A114323 A113808

Adjacent sequences: A115853 A115854 A115855 this_sequence A115857 A115858 A115859

nonn

Reinhard Zumkeller (reinhard.zumkeller(AT)lhsystems.com), Feb 01 2006