Pseudoprimes to base 7 that are not squarefree.

Terms

a(0) =25a(1) =325a(2) =1825a(3) =4525a(4) =4825a(5) =10225a(6) =12025a(7) =16725a(8) =20425a(9) =30025a(10) =35425a(11) =58825a(12) =177025a(13) =216525a(14) =265525a(15) =352225a(16) =526825a(17) =611425a(18) =675925a(19) =710425a(20) =717025a(21) =746425a(22) =772525a(23) =784225a(24) =834025a(25) =877825a(26) =1125825a(27) =1126225a(28) =1439425a(29) =1491025