42734

Appears in sequences

• Starting positions of strings of three 3's in the decimal expansion of Pi.at n=27A083610
• Number of planar n X n X n binary triangular grids symmetric under 120 degree rotation with no more than 3 ones in any 5 X 5 X 5 subtriangle.at n=13A153926
• Number of acute triangles, distinct up to congruence, on an n X n grid (or geoboard).at n=29A190021