188685

Appears in sequences

• E.g.f. cos(sin(x)) (even powers only).at n=6A003709
• Number of partitions of n-set into odd blocks.at n=12A003724
• Expansion of e.g.f. sinh(sinh(x))*exp(x).at n=11A009598
• Triangle read by rows: T(n,k) is the number of set partitions of {1,2,...,n} (or of any n-set) having k blocks of even size (0<=k<=floor(n/2)).at n=42A124322