53529

Appears in sequences

• Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 1100-1111-0010 pattern in any orientation.at n=16A146702
• Number of active (ON, black) cells at stage 2^n-1 of the two-dimensional cellular automaton defined by "Rule 422", based on the 5-celled von Neumann neighborhood.at n=8A272086
• a(n) = Sum_{k=1..n} C(n, floor((n-k)/k)).at n=18A273160
• The successive approximations up to 2^n for 2-adic integer 9^(1/3).at n=16A322999
• The successive approximations up to 2^n for 2-adic integer 9^(1/3).at n=17A322999