Partial sums of A027444.

Terms

a(0) =0a(1) =3a(2) =17a(3) =56a(4) =140a(5) =295a(6) =553a(7) =952a(8) =1536a(9) =2355a(10) =3465a(11) =4928a(12) =6812a(13) =9191a(14) =12145a(15) =15760a(16) =20128a(17) =25347a(18) =31521a(19) =38760a(20) =47180a(21) =56903a(22) =68057a(23) =80776a(24) =95200a(25) =111475a(26) =129753a(27) =150192a(28) =172956a(29) =198215