106904

Appears in sequences

• Number of acute isosceles triangles on an n X n grid.at n=18A190317
• Number of n X n symmetric binary matrices with each 1 adjacent to exactly 2 diagonally or antidiagonally neighboring 1s.at n=9A191274
• Index of the first occurrence of a string of exactly n consecutive odd digits in the decimal expansion of Pi.at n=15A239316
• Number of minimal total dominating sets in the (2n-1)-triangular snake graph.at n=20A308591