Partial sums of A193911.

Terms

a(0) =1a(1) =4a(2) =11a(3) =25a(4) =50a(5) =93a(6) =162a(7) =272a(8) =439a(9) =694a(10) =1069a(11) =1627a(12) =2432a(13) =3611a(14) =5292a(15) =7730a(16) =11181a(17) =16156a(18) =23167a(19) =33237a(20) =47390a(21) =67673a(22) =96134a(23) =136868a(24) =193971a(25) =275634a(26) =390049a(27) =553599a(28) =782668a(29) =1110023