a(n) is the smallest number greater than a(n-1) that is expressible as the sum of two squares in more ways than a(n-1).
A007511
a(n) is the smallest number greater than a(n-1) that is expressible as the sum of two squares in more ways than a(n-1).
Terms
- a(0) =2a(1) =50a(2) =325a(3) =1105a(4) =5525a(5) =27625a(6) =71825a(7) =138125a(8) =160225a(9) =801125a(10) =2082925a(11) =4005625a(12) =5928325a(13) =29641625a(14) =77068225a(15) =148208125a(16) =243061325a(17) =1215306625a(18) =3159797225a(19) =6076533125a(20) =12882250225a(21) =53716552825a(22) =64411251125a(23) =167469252925a(24) =322056255625a(25) =785817263725
External references
- oeis: A007511