Numbers k that divide prime(k^2) - 1.

Terms

a(0) =1a(1) =2a(2) =4a(3) =6a(4) =10a(5) =11a(6) =18a(7) =20a(8) =32a(9) =90a(10) =129a(11) =188a(12) =244a(13) =678a(14) =688a(15) =756a(16) =1081a(17) =1322a(18) =1477a(19) =19758a(20) =21351a(21) =29518a(22) =43187a(23) =49978a(24) =50342a(25) =95708a(26) =182326a(27) =248253