90453

Appears in sequences

• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.at n=20A219579
• Numerator of sum of numbers in set g(n) generated as in Comments.at n=10A264200
• Expansion of Product_{k>=1} ((1 + x^(4*k)) / (1 - x^k))^k.at n=20A285460
• Number of nX4 0..1 arrays with every element unequal to 1, 2, 5, 6 or 8 king-move adjacent elements, with upper left element zero.at n=15A305512