OFFSET
1,2
COMMENTS
A prime index of n is a number m such that prime(m) divides n. The multiset of prime indices of n is row n of A112798.
FORMULA
MATHEMATICA
Table[If[n==1, 1, LCM@@(PrimePi/@First/@FactorInteger[n]+1)], {n, 100}]
PROG
CROSSREFS
KEYWORD
nonn
AUTHOR
Gus Wiseman, Oct 16 2019
STATUS
approved