0,8
a(n) = A000720(A000041(n+1)) - A000720(A000041(n)).
Cf. A000040.
Sequence in context: A038810 A178503 A179254 * A035031 A035032 A121260
Adjacent sequences: A086606 A086607 A086608 * A086610 A086611 A086612
nonn
Reinhard Zumkeller (reinhard.zumkeller(AT)gmail.com), Sep 11 2003