640320

Appears in sequences

• sec(arcsinh(x)*tan(x))=1+12/4!*x^4+120/6!*x^6+15120/8!*x^8...at n=5A012620
• Expansion of Product_{m>=1} (1+m*q^m)^32.at n=5A022660
• Continued fraction expansion of exp(Pi*sqrt(163)/3).at n=0A190574
• Rounded near-integers (exp(Pi*sqrt(h)) - 744)^(1/3) where h is A003173(n+3) (Heegner numbers of the form 4p-1 where p is prime).at n=5A199743