Number of monosubstituted alkanes C(n)H(2n+1)-X of the form shown in the Comments lines that are stereoisomers.

A000623

Number of monosubstituted alkanes C(n)H(2n+1)-X of the form shown in the Comments lines that are stereoisomers.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =0a(5) =0a(6) =6a(7) =18a(8) =66a(9) =208a(10) =646a(11) =1962a(12) =5962a(13) =18014a(14) =54578a(15) =165650a(16) =504220a(17) =1539330a(18) =4713742a(19) =14475936a(20) =44578668a(21) =137634872a(22) =425970290a(23) =1321323952a(24) =4107268140a(25) =12792332438a(26) =39915708564a(27) =124762612530a(28) =390593588402

External references