A273658 - cp's OEIS frontend

A273658 Number of forests of labeled rooted trees of height at most 1, with n labels, eight of which are used for root nodes and any root may contain >= 1 labels.

n	a(n)
8	4140
9	153063
10	3315645
11	55239525
12	786082275
13	10081916559
14	120278261103
15	1361959159275
16	14838761544750
17	157056039953670
18	1626124163724918
19	16555067600440590
20	166368479811851850
21	1655233308679110930
22	16341232769733507570
23	160366537782578273850

[4140, 153063, 3315645, 55239525, 786082275, 10081916559, 120278261103, 1361959159275, 14838761544750, 157056039953670, 1626124163724918, 16555067600440590, 166368479811851850, 1655233308679110930, 16341232769733507570, 160366537782578273850]

cp's OEIS Frontend

A273658 Number of forests of labeled rooted trees of height at most 1, with n labels, eight of which are used for root nodes and any root may contain >= 1 labels.

Table of values

List of values