Number of permutations of {1,2,...,n} containing exactly 5 occurrences of the pattern 132.
A138163
Number of permutations of {1,2,...,n} containing exactly 5 occurrences of the pattern 132.
Terms
- a(0) =5a(1) =55a(2) =394a(3) =2225a(4) =11539a(5) =57064a(6) =273612a(7) =1283621a(8) =5924924a(9) =27005978a(10) =121861262a(11) =545368160a(12) =2423923480a(13) =10710273856a(14) =47085144255a(15) =206085075295a(16) =898489543020
External references
- oeis: A138163