a(n) = Sum_k k*A333275(n,k).

Terms

a(0) =4a(1) =30a(2) =116a(3) =290a(4) =652a(5) =1186a(6) =2092a(7) =3370a(8) =5212a(9) =7546a(10) =10828a(11) =14866a(12) =20260a(13) =26674a(14) =34508a(15) =43778a(16) =55364a(17) =68546a(18) =84644a(19) =102962a(20) =124172a(21) =147842a(22) =175772a(23) =206738a(24) =242372a(25) =281506a(26) =325652a(27) =374090a(28) =429356a(29) =488938