Primes p such that p+-1, p+-2, p+-3 and p+-4 are not squarefree.

Terms

a(0) =29002021a(1) =110196277a(2) =118389143a(3) =212660647a(4) =300782527a(5) =327385951a(6) =360369421a(7) =375338729a(8) =385025777a(9) =488642647a(10) =494501773a(11) =557565221a(12) =637805153a(13) =765921647a(14) =768588851a(15) =801954479a(16) =816239747a(17) =821097653a(18) =858454951a(19) =882772679a(20) =930996623