Positive numbers whose square starts and ends with exactly 44, and no 444.

Terms

a(0) =212a(1) =2112a(2) =6638a(3) =6662a(4) =6688a(5) =20988a(6) =21012a(7) =21062a(8) =21112a(9) =21138a(10) =21162a(11) =21188a(12) =21212a(13) =66338a(14) =66362a(15) =66388a(16) =66412a(17) =66438a(18) =66488a(19) =66512a(20) =66562a(21) =66588a(22) =66612a(23) =66712a(24) =66738a(25) =66762a(26) =66788a(27) =66812a(28) =66838a(29) =66862