568136184

Appears in sequences

• Number of forests of labeled rooted trees of height at most 1, with n labels, six of which are used for root nodes and any root may contain >= 1 labels.at n=6A273656
• Number of forests of labeled rooted trees of height at most 1, with 2n labels, n of which are used for root nodes and any root may contain >= 1 labels.at n=6A273661