-28269800

Appears in sequences

• Expansion of e.g.f. cos(log(1+x)).at n=12A003703
• Real part of Product_{k = 0..n} (1 + k*i), i = sqrt(-1).at n=11A105750
• Define u(n) as in A220448; then a(1)=1, thereafter a(n) = u(n)*a(n-1).at n=10A220449
• Real part of Product_{k=0..n} (i-k), where i = sqrt(-1).at n=11A242651