96004

Appears in sequences

• Number of nX7 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=2A302264
• T(n,k)=Number of nXk 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=38A302265
• Number of 3 X n 0..1 arrays with every element equal to 0, 1, 2 or 3 horizontally, diagonally or antidiagonally adjacent elements, with upper left element zero.at n=6A302267
• a(n) = [x^n] (1/(1 - x))*Product_{k>=1} 1/(1 - x^k)^n.at n=8A303070
• Numbers n>1 such that the difference between log(n) and its best rational approximation as x/y with y<=n produces a new minimum of abs(log(n)-x/y). x/y is provided as A306976/A306977.at n=26A306975
• Number of ways to tile a 1 X n strip using squares, red dominos, and blue dominos, where the number of red dominos must be twice the number of blues.at n=21A383952