"EFK" (unordered, size, unlabeled) transform of 1,3,5,7,...

Terms

a(0) =1a(1) =1a(2) =3a(3) =8a(4) =12a(5) =31a(6) =56a(7) =107a(8) =168a(9) =372a(10) =620a(11) =1032a(12) =1819a(13) =2888a(14) =5228a(15) =8821a(16) =13692a(17) =21764a(18) =36528a(19) =54756a(20) =92384a(21) =145180a(22) =222809a(23) =339596a(24) =524468a(25) =803716a(26) =1204461a(27) =1884224a(28) =2844820a(29) =4202784