Number of twice-partitions of n into partitions with all odd lengths and sums.

Terms

a(0) =1a(1) =1a(2) =1a(3) =3a(4) =3a(5) =7a(6) =11a(7) =19a(8) =27a(9) =51a(10) =83a(11) =128a(12) =208a(13) =324a(14) =542a(15) =856a(16) =1332a(17) =2047a(18) =3371a(19) =5083a(20) =8009a(21) =12545a(22) =19478a(23) =29770a(24) =46038a(25) =70777a(26) =108627a(27) =167847a(28) =255408a(29) =388751