-491520

Appears in sequences

• Denominators of a series expansion for Pi/2.at n=22A156269
• Egyptian fraction expansion for Pi/4 = arctan(1/2) + arctan(1/3) (Hutton 1776).at n=14A157327
• Denominators of a BBP series for Pi/4.at n=15A164916
• a(n) = sin((2*n+5)*Pi/6)*(n+1)*2^(n+1).at n=14A176900