88608

Appears in sequences

• G.f. is ((1-x)/(1-2*x)) * G(x*(1-x)/(1-2*x)) where G(x) is g.f. for Catalan numbers A000108.at n=9A059279
• Summed lengths of nonintersecting rook paths on a 4 X n board.at n=5A181395
• Summed lengths of nonintersecting rook paths on a 6 X n board.at n=3A181397
• Summed lengths of nonintersecting rook paths on an n X k board (square array by antidiagonals).at n=39A181399
• Summed lengths of nonintersecting rook paths on an n X k board (square array by antidiagonals).at n=41A181399
• Number of (w,x,y,z) with all terms in {1,...,n} and w>2x and y<3z.at n=26A212516
• Number of minimal dominating sets in the n-Andrásfai graph.at n=21A286879
• Number of circular binary words of length n having the maximum possible number of distinct blocks of length floor(log_2 n) and floor(log_2 n)+1.at n=38A317586
• Larger of semi-unitary amicable numbers pair: numbers (m, n) such that susigma(m) = susigma(n) = m + n, where susigma(n) is the sum of the semi-unitary divisors of n (A322485).at n=14A322542
• Larger of modified exponential amicable pairs.at n=12A323759