Convolution of natural numbers with A014306.

Terms

a(0) =0a(1) =1a(2) =3a(3) =5a(4) =8a(5) =12a(6) =17a(7) =23a(8) =30a(9) =37a(10) =45a(11) =54a(12) =64a(13) =75a(14) =87a(15) =100a(16) =114a(17) =129a(18) =145a(19) =161a(20) =178a(21) =196a(22) =215a(23) =235a(24) =256a(25) =278a(26) =301a(27) =325a(28) =350a(29) =376