Primes p such that p+-1, p+-2 and p+-3 are not squarefree.

Terms

a(0) =47527a(1) =186247a(2) =218527a(3) =245149a(4) =269953a(5) =377543a(6) =390449a(7) =432277a(8) =447823a(9) =453053a(10) =469649a(11) =518123a(12) =568177a(13) =584911a(14) =589273a(15) =606323a(16) =632347a(17) =661547a(18) =761347a(19) =831751a(20) =848213a(21) =897577a(22) =913327a(23) =925949a(24) =952253a(25) =1172351a(26) =1205647a(27) =1220347a(28) =1241477