100814

Appears in sequences

• Triangle of a(n,k) = number of k-member minimal covers of an n-set (n >= k >= 1).at n=33A035348
• Number of minimal covers on n objects with 6 members.at n=7A046167
• Number of binary strings of length n with no substrings equal to 0001 0010 or 1101.at n=26A164452
• Number of nondecreasing arrangements of n+3 numbers in 0..4 with each number being the sum mod 5 of three others.at n=33A183899
• Number of (n+3) X 6 binary arrays with every 4 X 4 subblock commuting with each horizontal and vertical neighbor 4 X 4 subblock.at n=21A188099
• Number of Sidon subsets of {1,...,n} of size 4.at n=42A241688
• Numbers k such that k and k+1 have at least 4 but not both exactly 4 distinct prime factors.at n=32A321494