Number of broken 1-diamond partitions of n.

Terms

a(0) =1a(1) =3a(2) =8a(3) =18a(4) =38a(5) =75a(6) =142a(7) =258a(8) =455a(9) =780a(10) =1308a(11) =2148a(12) =3467a(13) =5505a(14) =8618a(15) =13314a(16) =20327a(17) =30693a(18) =45882a(19) =67944a(20) =99745a(21) =145239a(22) =209882a(23) =301128a(24) =429148a(25) =607710a(26) =855414a(27) =1197228a(28) =1666585a(29) =2308014