219062

Appears in sequences

• a(0) = 1, a(1)= 2, a(n) = (a(n+1) - a(n-1))/n, or a(n+1) = n*a(n) + a(n-1).at n=9A093858
• Sum of the asymmetry degrees of all compositions of n with parts in {1,2,3}.at n=19A275445