a(1) = 10, a(n) = smallest number > a(n-1) such that the concatenation of a(n-1) and a(n) is a square.

A265150

a(1) = 10, a(n) = smallest number > a(n-1) such that the concatenation of a(n-1) and a(n) is a square.

Terms

    a(0) =10a(1) =24a(2) =336a(3) =400a(4) =689a(5) =5876a(6) =7556a(7) =8249a(8) =53284a(9) =335556a(10) =4512400a(11) =25092921a(12) =165947209a(13) =496186596a(14) =3891489129a(15) =6897736129a(16) =10128495225a(17) =18547234816a(18) =81770476100a(19) =203672467856a(20) =909690622025

External references