Sum of positive F-ranks of all compositions of n. Also, sum of positive L-ranks of all compositions of n (see comments lines for definition).

A228820

Sum of positive F-ranks of all compositions of n. Also, sum of positive L-ranks of all compositions of n (see comments lines for definition).

Terms

    a(0) =0a(1) =0a(2) =1a(3) =3a(4) =9a(5) =24a(6) =60a(7) =145a(8) =342a(9) =791a(10) =1800a(11) =4041a(12) =8971a(13) =19733a(14) =43077a(15) =93441a(16) =201592a(17) =432867a(18) =925574a(19) =1971633a(20) =4185537a(21) =8857634a(22) =18691421a(23) =39339638a(24) =82599634a(25) =173050951a(26) =361825484a(27) =755140789a(28) =1573359111a(29) =3273103135

External references