161243136

Appears in sequences

• Product of nonzero digits of A066555(n).at n=21A066585
• 6th binomial transform of (1,1,0,0,0,0,...).at n=10A081106
• Numbers which can be written using their digits in order and only multiplication and squaring operators.at n=26A194766
• (n-1)-st elementary symmetric function of the first n terms of the periodic sequence (2,3,2,3,2,3,...).at n=18A203232
• a(n) = product of first k composites, with the i-th composite raised to the d-th power, where k = A055642(n) and d is the i-th digit of n.at n=28A270142
• Number of permutations p of [n] such that p(i)-i is a multiple of nine for all i in [n].at n=29A275064
• Numbers k such that A072079(k)/k sets a new record.at n=35A355579
• a(n) = Product_{k=1..n} k!^(k^2).at n=3A372150