A365554 - cp's OEIS frontend

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.

n	a(n)
2	2
3	10
4	60
5	396
6	2976
7	25056
8	234720
9	2423520
10	27371520
11	335819520
12	4449150720
13	63318931200
14	963548006400
15	15614378035200
16	268480048435200
17	4882321001779200
18	93627018326016000
19	1888394741194752000
20	39963486306078720000
21	885457095215616000000

[2, 10, 60, 396, 2976, 25056, 234720, 2423520, 27371520, 335819520, 4449150720, 63318931200, 963548006400, 15614378035200, 268480048435200, 4882321001779200, 93627018326016000, 1888394741194752000, 39963486306078720000, 885457095215616000000]

cp's OEIS Frontend

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.

Table of values

List of values