102944

Appears in sequences

• Number of triangles created when a square sheet of paper is folded n times, the first time by one of the diagonals of the square and then by the median of the square triangle.at n=11A096227
• Number of triangles in an n X n grid of squares with diagonals.at n=32A100583
• a(n) = round(Pi*2^(n-1)) for n >= 1, a(0) = 1.at n=16A121349
• Nearest integer to 2^n*Pi/4.at n=17A155996
• a(n) = ceiling(Pi*n^3).at n=32A247194
• Least integer k such that k/2^n > Pi.at n=15A293342
• a(n) = (-1)^(n-1) + Sum_{d|n, d>1} a(n/d)^d.at n=35A305572