"DFJ" (bracelet, size, labeled) transform of 2,1,1,1...

Terms

a(0) =1a(1) =2a(2) =1a(3) =7a(4) =9a(5) =21a(6) =148a(7) =281a(8) =997a(9) =3037a(10) =83436a(11) =187155a(12) =906986a(13) =4040713a(14) =19429075a(15) =967161214a(16) =2687357885a(17) =15062567325a(18) =76117375036a(19) =495916450391