A367904 - cp's OEIS frontend

A367904 Number of sets of nonempty subsets of {1..n} with only one possible way to choose a sequence of different vertices of each edge.

n	a(n)
0	1
1	2
2	6
3	38
4	666
5	32282
6	3965886
7	1165884638
8	792920124786
9	1220537093266802
10	4187268805038970806
11	31649452354183112810198
12	522319168680465054600480906
13	18683388426164284818805590810122
14	1439689660962836496648920949576152046
15	237746858936806624825195458794266076911118

[1, 2, 6, 38, 666, 32282, 3965886, 1165884638, 792920124786, 1220537093266802, 4187268805038970806, 31649452354183112810198, 522319168680465054600480906, 18683388426164284818805590810122, 1439689660962836496648920949576152046, 237746858936806624825195458794266076911118]

cp's OEIS Frontend

A367904 Number of sets of nonempty subsets of {1..n} with only one possible way to choose a sequence of different vertices of each edge.

Table of values

List of values