Least number k such that k^2 can be obtained from k by inserting internal (but not necessarily contiguous) digits in n different ways.
A277442
Least number k such that k^2 can be obtained from k by inserting internal (but not necessarily contiguous) digits in n different ways.
Terms
- a(0) =0a(1) =10a(2) =101a(3) =100a(4) =10006a(5) =950005a(6) =1001a(7) =9569005a(8) =100105a(9) =100500a(10) =1000a(11) =95370001a(12) =1000201a(13) =102100005a(14) =9957800a(15) =100006a(16) =9500005a(17) =1100005a(18) =100100a(19) =1010005a(20) =10001a(21) =10000096a(22) =10005005a(23) =1000105a(24) =1001005a(25) =999578000a(26) =1002600005a(27) =12500100a(28) =100010505a(29) =1050500005
External references
- oeis: A277442