5912192

Appears in sequences

• The product of the positive integers <= n that are strongly prime to n.at n=21A181832
• 1/32 the number of (n+1) X 5 binary arrays with equal numbers of 2 X 2 subblocks with sum mod two being 0 and 1.at n=4A183767
• 1/32 the number of (2n+1) X 6 binary arrays with equal numbers of 2 X 2 subblocks with sum mod two being 0 and 1.at n=1A183768
• T(n,k) = 1/32 the number of (n+1) X (k+1) binary arrays with equal numbers of 2 X 2 subblocks with sum mod two being 0 and 1.at n=31A183772
• T(n,k) = 1/32 the number of (n+1) X (k+1) binary arrays with equal numbers of 2 X 2 subblocks with sum mod two being 0 and 1.at n=32A183772