20422

Appears in sequences

• Number of Dyck paths of knight moves.at n=15A005220
• Number of representations of n as a sum of products of positive integers. 1 is not allowed as a factor, unless it is the only factor. Representations which differ only in the order of terms or factors are considered equivalent.at n=29A066739
• Iccanobirt prime indices (1 of 15): Indices of prime numbers in A102111.at n=12A102131
• a(n) = ceiling((9*n+1/n)^n).at n=2A197769
• Number of non-equivalent ways to choose three points in an equilateral triangle grid of side n.at n=12A230723
• Expansion of Product_{1 <= i_1 <= i_2 <= i_3 <= i_4} 1/(1 - x^(i_1*i_2*i_3*i_4)).at n=29A321566