A054593 Number of disconnected labeled digraphs with n nodes.
0, 1, 10, 262, 21496, 6433336, 7566317200, 35247649746352, 648839620390462336, 47230175230392839683456, 13617860445102311268975051520, 15577054031612736747163633737901312
Offset: 1
Links
- Andrew Howroyd, Table of n, a(n) for n = 1..50
Formula
a(n) = 2^(n*(n-1)) - A003027(n).