Partial sums of A139250.

Terms

a(0) =0a(1) =1a(2) =4a(3) =11a(4) =22a(5) =37a(6) =60a(7) =95a(8) =138a(9) =185a(10) =240a(11) =307a(12) =386a(13) =481a(14) =604a(15) =759a(16) =930a(17) =1105a(18) =1288a(19) =1483a(20) =1690a(21) =1913a(22) =2164a(23) =2447a(24) =2750a(25) =3069a(26) =3416a(27) =3799a(28) =4222a(29) =4705