Numbers k such that there are 9 digits in k^2 and for each factor f of 9 (1,3) the sum of digit groupings of size f is a square.
A153747
Numbers k such that there are 9 digits in k^2 and for each factor f of 9 (1,3) the sum of digit groupings of size f is a square.
Terms
- a(0) =10000a(1) =10001a(2) =10002a(3) =10003a(4) =10004a(5) =10005a(6) =10010a(7) =10011a(8) =10012a(9) =10013a(10) =10020a(11) =10021a(12) =10022a(13) =10030a(14) =10031a(15) =10200a(16) =10284a(17) =10287a(18) =10300a(19) =10353a(20) =10356a(21) =10359a(22) =10433a(23) =10578a(24) =10588a(25) =10617a(26) =10623a(27) =10642a(28) =10679a(29) =10683
External references
- oeis: A153747