Partial sums of economical numbers A046759.

Terms

a(0) =125a(1) =253a(2) =496a(3) =752a(4) =1095a(5) =1607a(6) =2232a(7) =2961a(8) =3985a(9) =5014a(10) =6229a(11) =7479a(12) =8759a(13) =10090a(14) =11459a(15) =12917a(16) =14453a(17) =16134a(18) =17835a(19) =19550a(20) =21342a(21) =23191a(22) =25066a(23) =27114a(24) =29301a(25) =31498a(26) =33707a(27) =36108a(28) =38668a(29) =41477