Partial sums of A023200.

Terms

a(0) =3a(1) =10a(2) =23a(3) =42a(4) =79a(5) =122a(6) =189a(7) =268a(8) =365a(9) =468a(10) =577a(11) =704a(12) =867a(13) =1060a(14) =1283a(15) =1512a(16) =1789a(17) =2096a(18) =2409a(19) =2758a(20) =3137a(21) =3534a(22) =3973a(23) =4430a(24) =4893a(25) =5380a(26) =5879a(27) =6492a(28) =7135a(29) =7808