Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,3}.
A079965
Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=1, r=5, I={0,3}.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =1a(5) =3a(6) =3a(7) =5a(8) =8a(9) =10a(10) =17a(11) =24a(12) =35a(13) =54a(14) =77a(15) =116a(16) =172a(17) =252a(18) =377a(19) =555a(20) =822a(21) =1220a(22) =1801a(23) =2671a(24) =3953a(25) =5849a(26) =8666a(27) =12823a(28) =18987a(29) =28113
External references
- oeis: A079965