Self-convolution of A105613.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =11a(5) =12a(6) =24a(7) =48a(8) =71a(9) =78a(10) =155a(11) =272a(12) =420a(13) =652a(14) =903a(15) =1364a(16) =2144a(17) =3436a(18) =5955a(19) =9668a(20) =10838a(21) =16408a(22) =27948a(23) =45920a(24) =66817a(25) =109296a(26) =152786a(27) =197542a(28) =327755a(29) =531440