Numbers k such that k+1 concatenated with k is a square.
A328089
Numbers k such that k+1 concatenated with k is a square.
Terms
- a(0) =81a(1) =8241a(2) =9801a(3) =538276a(4) =998001a(5) =77837025a(6) =99980001a(7) =7922547264a(8) =8643251344a(9) =9223797609a(10) =9999800001a(11) =106710893289a(12) =453378226756a(13) =491023832064a(14) =945958034529a(15) =999998000001
External references
- oeis: A328089