Partial sums of A299254.

Terms

a(0) =1a(1) =8a(2) =29a(3) =74a(4) =153a(5) =275a(6) =450a(7) =687a(8) =996a(9) =1387a(10) =1869a(11) =2452a(12) =3145a(13) =3958a(14) =4901a(15) =5983a(16) =7214a(17) =8603a(18) =10160a(19) =11895a(20) =13817a(21) =15936a(22) =18261a(23) =20802a(24) =23569a(25) =26571a(26) =29818a(27) =33319a(28) =37084a(29) =41123