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={0,1,3}.
A079957
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={0,1,3}.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =1a(4) =0a(5) =1a(6) =2a(7) =0a(8) =2a(9) =3a(10) =1a(11) =5a(12) =5a(13) =3a(14) =10a(15) =9a(16) =9a(17) =20a(18) =17a(19) =22a(20) =39a(21) =35a(22) =51a(23) =76a(24) =74a(25) =112a(26) =150a(27) =160a(28) =239a(29) =300
External references
- oeis: A079957