Partial sums of A033616.

Terms

a(0) =1a(1) =5a(2) =14a(3) =30a(4) =55a(5) =92a(6) =145a(7) =219a(8) =318a(9) =443a(10) =594a(11) =771a(12) =976a(13) =1214a(14) =1493a(15) =1821a(16) =2202a(17) =2636a(18) =3119a(19) =3647a(20) =4221a(21) =4848a(22) =5538a(23) =6300a(24) =7140a(25) =8059a(26) =9054a(27) =10122a(28) =11262a(29) =12476