(1, 3, 5, 7, 9, ...) convolved with (1, 0, 3, 5, 7, 9, ...).

Terms

a(0) =1a(1) =3a(2) =8a(3) =21a(4) =46a(5) =87a(6) =148a(7) =233a(8) =346a(9) =491a(10) =672a(11) =893a(12) =1158a(13) =1471a(14) =1836a(15) =2257a(16) =2738a(17) =3283a(18) =3896a(19) =4581a(20) =5342a(21) =6183a(22) =7108a(23) =8121a(24) =9226a(25) =10427a(26) =11728a(27) =13133a(28) =14646a(29) =16271