20351

Appears in sequences

• Binomial transform of A135416.at n=15A138035
• Integers n such that exactly 80 percent of the digits in base 2 are 1's.at n=44A163142
• Number of nXnXn triangular 0..2 arrays with every horizontal row having the same average value.at n=4A214589
• T(n,k) = number of n X n X n triangular 0..k arrays with every horizontal row having the same average value.at n=19A214595
• Number of 5X5X5 triangular 0..n arrays with every horizontal row having the same average value.at n=1A214598
• Generalized Markoff numbers: largest of 7-tuple of positive numbers a, b, c, d, e, f, g satisfying the Markoff(7) equation a^2+b^2+c^2+d^2+e^2+f^2+g^2 = 3abcdefg.at n=32A227211
• Odd numbers n such that the sum of the binary digits of n and n^2 both equal 12.at n=17A261593