Number of compositions of n such that the number of parts and the smallest part are not coprime.

Terms

a(0) =0a(1) =0a(2) =0a(3) =1a(4) =2a(5) =2a(6) =2a(7) =4a(8) =9a(9) =17a(10) =30a(11) =49a(12) =76a(13) =116a(14) =180a(15) =286a(16) =460a(17) =746a(18) =1217a(19) =1990a(20) =3251a(21) =5303a(22) =8639a(23) =14057a(24) =22844a(25) =37077a(26) =60110a(27) =97356a(28) =157568a(29) =254920