Least k such that 1+2+...+k >= 1^2 + 2^2 + ... + n^2.

Terms

a(0) =1a(1) =3a(2) =5a(3) =8a(4) =10a(5) =13a(6) =17a(7) =20a(8) =24a(9) =28a(10) =32a(11) =36a(12) =40a(13) =45a(14) =50a(15) =55a(16) =60a(17) =65a(18) =70a(19) =76a(20) =81a(21) =87a(22) =93a(23) =99a(24) =105a(25) =111a(26) =118a(27) =124a(28) =131a(29) =138