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={0,2}.
A079993
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={0,2}.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =5a(5) =9a(6) =23a(7) =39a(8) =97a(9) =197a(10) =465a(11) =969a(12) =2161a(13) =4605a(14) =10202a(15) =22051a(16) =48438a(17) =105028a(18) =229692a(19) =499620a(20) =1091268a(21) =2376641a(22) =5185742a(23) =11299467a(24) =24645179a(25) =53718931a(26) =117144203a(27) =255371099a(28) =556824105a(29) =1213941393
External references
- oeis: A079993