46023

Appears in sequences

• a(n) is the number of n-tosses having a run of 3 or more heads for a fair coin (i.e., probability is a(n)/2^n).at n=15A050231
• G.f. satisfies: A(x) = exp( Sum_{n>=1} A(x^n)/(1+x^n) * x^n/n ).at n=19A198518
• Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 2 X n array.at n=25A219628
• Number of (n+1)X(2+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal.at n=3A236869
• Number of (n+1)X(4+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal.at n=1A236871
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal.at n=11A236875
• T(n,k)=Number of (n+1)X(k+1) 0..2 arrays with the maximum plus the upper median minus the lower median of every 2X2 subblock equal.at n=13A236875
• Number of (n+1) X (5+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.at n=5A251134
• Number of (n+1) X (6+1) 0..2 arrays with no 2 X 2 subblock having the sum of its diagonal elements greater than the maximum of its antidiagonal elements.at n=4A251135
• G.f. A(x) satisfies A(x) = 1 + x/(1-x^3)^2 * A(x)^3.at n=8A389286