Carryless squares of carryless primes (cf. A169887).

Terms

a(0) =405a(1) =429a(2) =441a(3) =461a(4) =489a(5) =501a(6) =504a(7) =506a(8) =509a(9) =605a(10) =621a(11) =649a(12) =669a(13) =681a(14) =40401a(15) =40601a(16) =42041a(17) =42229a(18) =44021a(19) =44869a(20) =46081a(21) =46849a(22) =48061a(23) =48289a(24) =50501a(25) =50509a(26) =60409a(27) =60609a(28) =62049a(29) =62821