104857600

Appears in sequences

• a(n) = (n+2)*2^(n-1).at n=23A001792
• Denominators of Taylor series expansion of arcsin(x). Also arises from arccos(x), arccsc(x), arcsec(x), arcsinh(x).at n=12A002595
• Berstel sequence: a(n+1) = 2*a(n) - 4*a(n-1) + 4*a(n-2).at n=35A007420
• a(n) = Sum_{k=0..floor(n/2)} k*binomial(n,2*k) = floor(n*2^(n-3)).at n=25A049610
• a(n) is the smallest number such that a(n)+1 is a prime and the largest power of 2 which divides it is 2^n.at n=22A057777
• Composites of form prime-1 containing a record number of prime factors.at n=19A066632
• a(n) = n^2*4^n.at n=10A128782
• Number of binary strings of length n with equal numbers of 0001 and 1000 substrings.at n=27A164161
• Inverse binomial transform of A026741.at n=25A168150
• a(n) = n^2 if n is odd, n^2*2^(n-2) if n is even.at n=20A168251
• Squares that can be expressed as the sum of two positive squares but not as the sum of three positive squares.at n=11A309779