Number of compositions (ordered partitions) of n into squarefree parts that do not divide n.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =0a(5) =2a(6) =0a(7) =5a(8) =2a(9) =5a(10) =2a(11) =27a(12) =2a(13) =67a(14) =12a(15) =16a(16) =28a(17) =366a(18) =4a(19) =848a(20) =28a(21) =182a(22) =153a(23) =4591a(24) =20a(25) =4172a(26) =554a(27) =2217a(28) =558a(29) =57695