216448

Appears in sequences

• sinh(arcsin(x)*sin(x))=2/2!*x^2+160/6!*x^6+1344/8!*x^8+216448/10!*x^10...at n=4A012333
• Coordination sequence for root lattice B_8.at n=4A022150
• a(n) = coefficient of sqrt(3) in the expansion of (1 + sqrt(2) + sqrt(3))^n sequence.at n=10A188572