%I #11 Apr 28 2020 19:26:42
%S 1,2,3,6,16,51,220,1179
%N Number of different values taken by permanent of n X n (0,1)-matrix.
%H <a href="/index/Mat#binmat">Index entries for sequences related to binary matrices</a>
%e For a 4 X 4 matrix the 16 possible permanents and their multiplicieties are:
%e {{0, 27713}, {1, 13032}, {2, 10800}, {3, 4992}, {4, 4254}, {5, 1440}, {6, 1536}, {7, 576}, {8, 648}, {9, 24}, {10, 288}, {11, 96}, {12, 48}, {14, 72}, {18, 16}, {24, 1}}
%Y Cf. A089477, A089479, A089472.
%K nonn,more
%O 0,2
%A _Wouter Meeussen_, Oct 29 2003
%E a(6)=220 from _Gordon F. Royle_, Nov 05 2003
%E a(7) from _Giovanni Resta_, Mar 29 2006
%E a(0)=1 prepended by _Alois P. Heinz_, Apr 28 2020