Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0,1,2}.
A079988
Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0,1,2}.
Terms
- a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =3a(6) =3a(7) =3a(8) =6a(9) =10a(10) =29a(11) =39a(12) =61a(13) =101a(14) =179a(15) =335a(16) =566a(17) =928a(18) =1575a(19) =2705a(20) =4747a(21) =8117a(22) =13782a(23) =23464a(24) =40216a(25) =69209a(26) =118650a(27) =202712a(28) =346508a(29) =593180
External references
- oeis: A079988