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={-1,1,2}.
A079984
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={-1,1,2}.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =2a(5) =5a(6) =10a(7) =16a(8) =26a(9) =43a(10) =80a(11) =148a(12) =264a(13) =465a(14) =816a(15) =1444a(16) =2588a(17) =4619a(18) =8214a(19) =14591a(20) =25903a(21) =46071a(22) =82015a(23) =145904a(24) =259492a(25) =461408a(26) =820468a(27) =1459332a(28) =2595687a(29) =4616613
External references
- oeis: A079984