1022105

Appears in sequences

• Record indices of A135727(n) = max{ A001281^k(n);k=0,1,2,3... } (3x-1 problem).at n=28A135728
• Number of (n+1) X (6+1) 0..1 arrays with each row and column divisible by 3, read as a binary number with top and left being the most significant bits, and rows and columns lexicographically nonincreasing.at n=9A263797