138255

Appears in sequences

• a(n) = floor(a(n-1)*3/2) with a(1) = 2.at n=28A061418
• Number of numbers whose base-3/2 expansion (see A024629) has n digits.at n=28A081848
• Number of (n+2)X(3+2) 0..1 arrays with every 3X3 subblock sum of the two medians of the central row and column plus the two sums of the diagonal and antidiagonal nondecreasing horizontally, vertically and ne-to-sw antidiagonally.at n=7A259001
• Number of non-equivalent ways to place 3 non-attacking kings on an n X n board.at n=13A279112