1,2
a(n) = A000720(A049575(n))
PrimePi@Select[PartitionsP@Range@301, PrimeQ@# &] (from Robert G. Wilson v (rgwv(at)rgwv.com), Nov 14 2005)
Cf. A000040, A000041, A046063, A049575.
Sequence in context: A088865 A075807 A124232 * A084853 A115337 A076209
Adjacent sequences: A051140 A051141 A051142 * A051144 A051145 A051146
nonn,nice,more
G. L. Honaker, Jr. (honak3r(AT)gmail.com)