The square root of A100252; the index of the least square number greater than 1 that is also an n-gonal number, or 0 if none exists.
A100251
The square root of A100252; the index of the least square number greater than 1 that is also an n-gonal number, or 0 if none exists.
Terms
- a(0) =6a(1) =2a(2) =99a(3) =35a(4) =9a(5) =15a(6) =3a(7) =0a(8) =14a(9) =8a(10) =6a(11) =21a(12) =55a(13) =4a(14) =133a(15) =10a(16) =22a(17) =0a(18) =51a(19) =27a(20) =261a(21) =15a(22) =5a(23) =85a(24) =161a(25) =9a(26) =35a(27) =451a(28) =21a(29) =33
External references
- oeis: A100251