Number of permutations of length n containing exactly 1 occurrence of 1243.
A224179
Number of permutations of length n containing exactly 1 occurrence of 1243.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =1a(4) =11a(5) =88a(6) =638a(7) =4478a(8) =31199a(9) =218033a(10) =1535207a(11) =10910759a(12) =78310579a(13) =567588264a(14) =4152765025a(15) =30656248812a(16) =228215224472
External references
- oeis: A224179