Numbers k such that k^2 is of the form 3*m^2 + 2*m + 1 (A056109).
A122769
Numbers k such that k^2 is of the form 3*m^2 + 2*m + 1 (A056109).
Terms
- a(0) =1a(1) =11a(2) =153a(3) =2131a(4) =29681a(5) =413403a(6) =5757961a(7) =80198051a(8) =1117014753a(9) =15558008491a(10) =216695104121
External references
- oeis: A122769