2*k-digit squares with the left half being a reversed k-digit square and the right half being a k-digit square.

A367378

2*k-digit squares with the left half being a reversed k-digit square and the right half being a k-digit square.

Terms

    a(0) =49a(1) =1849a(2) =144400a(3) =148225a(4) =522729a(5) =16564900a(6) =40322500a(7) =46717225a(8) =98446084a(9) =98863249a(10) =1429293636a(11) =1697440000a(12) =4013222500a(13) =4228250625a(14) =4247128900a(15) =4684991809a(16) =5205622500a(17) =5227290000a(18) =6161465025a(19) =6557274529a(20) =104409765625a(21) =121975562500a(22) =123151864900a(23) =127413302500a(24) =140301186624

External references