Number of increasing paths from the bottom to the top of the n-hypercube (as a graded poset) which first encounter a vector of isolated zeros at stage k, weighted by k.
A365554
Number of increasing paths from the bottom to the top of the n-hypercube (as a graded poset) which first encounter a vector of isolated zeros at stage k, weighted by k.
Terms
- a(0) =2a(1) =10a(2) =60a(3) =396a(4) =2976a(5) =25056a(6) =234720a(7) =2423520a(8) =27371520a(9) =335819520a(10) =4449150720a(11) =63318931200a(12) =963548006400
External references
- oeis: A365554