53940

Appears in sequences

• Floor[n(n-1)(n-2)(n-3)/14].at n=31A011924
• a(n) = floor(n*(n-1)*(n-2)*(n-3)/16).at n=32A011926
• Number of ordered quadruples of integers from [ 1..n ] with no global factor.at n=32A015634
• Denominators of continued fraction convergents to sqrt(898).at n=7A042737
• Denominators of row 4 of table described in A051714/A051715.at n=27A051723
• Consider recurrence b(0) = (2n+1)/2, b(n) = b(n-1)*floor(b(n-1)); sequence gives first integer reached.at n=13A057016
• Triangle A(n,m) of numbers of n-element T_0-antichains on a labeled m-set, m=0,...,2^n.at n=25A059080
• Fifth column of (1,5)-Pascal triangle A096940.at n=28A096942
• Numbers n such that sigma(n) = 12*phi(n).at n=7A104902
• Numbers n such that the sum of the distinct prime divisors of n that are congruent to 1 mod 4 equals the sum of the distinct prime divisors congruent to 3 mod 4.at n=32A215949
• Number of 2 X 2 matrices with entries in {0,1,...,n} with determinant = permanent with no entries repeated.at n=31A280058