a(n) = Sum {j=1..n} j*A001462(j).

Terms

a(0) =1a(1) =5a(2) =11a(3) =23a(4) =38a(5) =62a(6) =90a(7) =122a(8) =167a(9) =217a(10) =272a(11) =344a(12) =422a(13) =506a(14) =596a(15) =708a(16) =827a(17) =953a(18) =1086a(19) =1246a(20) =1414a(21) =1590a(22) =1774a(23) =1990a(24) =2215a(25) =2449a(26) =2692a(27) =2944a(28) =3234a(29) =3534