53370

Appears in sequences

• Third column of A155092.at n=17A155099
• The number of odd numbers that require n Collatz (3x+1) iterations to reach 1.at n=55A176866
• Triangular array: row n gives the coefficients of the polynomial p(n,x) defined in Comments.at n=57A249159
• Number of free pure symmetric multifunctions in one symbol with n positions.at n=16A280000