OFFSET
1,1
LINKS
Michael De Vlieger, Table of n, a(n) for n = 1..1009
MATHEMATICA
Position[Import["https://oeis.org/A090252/b090252.txt", "Data"][[1 ;; 4000, -1]], _?(CompositeQ[#] && PrimePowerQ[#] &)][[All, 1]]
CROSSREFS
KEYWORD
nonn
AUTHOR
Michael De Vlieger, Jun 15 2022
STATUS
approved