90805

Appears in sequences

• Number of simple labeled graphs on n nodes with exactly 10 connected components that are trees or cycles.at n=3A215860
• Number of simple labeled graphs on n+3 nodes with exactly n connected components that are trees or cycles.at n=10A215863
• Natural growth of an aliquot sequence driven by a perfect number 2^(p-1)*((2^p)-1), but starting at 27.at n=20A216224