26230

Appears in sequences

• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 0, 1), (1, 1, -1), (1, 1, 1)}.at n=9A149281
• Number of 1-sided polypons with n cells.at n=16A151531
• Half the number of length n integer sequences with sum zero and sum of squares 7938.at n=3A157595
• Number of binary strings of length n with no substrings equal to 0010 or 1001.at n=13A164403
• Number of (n+1)X(2+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=1A237787
• T(n,k)=Number of (n+1)X(k+1) 0..3 arrays with the maximum plus the minimum minus the lower median of every 2X2 subblock differing from its horizontal and vertical neighbors by exactly one.at n=4A237791
• Partial sums of the number of active (ON, black) cells in n-th stage of growth of two-dimensional cellular automaton defined by "Rule 737", based on the 5-celled von Neumann neighborhood.at n=26A273480
• Expansion of Product_{k>=1} 1/(1 - x^(k*(k+1)/2))^2.at n=42A298435
• 31-gonal numbers: a(n) = n*(29*n-27)/2.at n=43A360488
• Consecutive states of the linear congruential pseudo-random number generator 170*s mod 30323 when started at s=1.at n=25A385033