Number of compositions p(1)+p(2)+...+p(k) = n such that for no part p(i) = i (compositions without fixed points).

A238351

Number of compositions p(1)+p(2)+...+p(k) = n such that for no part p(i) = i (compositions without fixed points).

Terms

    a(0) =1a(1) =0a(2) =1a(3) =2a(4) =3a(5) =6a(6) =11a(7) =22a(8) =42a(9) =82a(10) =161a(11) =316a(12) =624a(13) =1235a(14) =2449a(15) =4864a(16) =9676a(17) =19267a(18) =38399a(19) =76582a(20) =152819a(21) =305085a(22) =609282a(23) =1217140a(24) =2431992a(25) =4860306a(26) =9714696a(27) =19419870a(28) =38824406a(29) =77624110

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