10391023

Properties

Appears in sequences

• Denominators of convergents to e.at n=19A007677
• Square array read by antidiagonals of T(n,k)=(4k-2)*T(n,k-1)+T(n,k-2) with T(n,0)=1 and T(n,1)=n.at n=37A079166
• Primes which are the denominators of convergents of the continued fraction expansion of e.at n=4A094008
• a(3n) = a(3n-1) + a(3n-2), a(3n+1) = 2n*a(3n) + a(3n-1), a(3n+2) = a(3n+1) + a(3n).at n=21A113874
• a(n) = min{k>0: the n-th convergent to e equals m/k! for some m}.at n=19A120355
• Number triangle with row sums given by quadruple factorial numbers A001813.at n=28A168422
• a(n) = (n+6)*a(n-1) + (n-1)*a(n-2), a(-1)=0, a(0)=1.at n=7A176733
• Least splitter of f(n) and f(n+1), where s(1) = 1, s(2) = 1, s(n) = s(n-1) + s(n-2)/(n-2) and f(n) = n/(n - s(n)).at n=15A227773
• Denominators of the other-side convergents to e.at n=18A259588
• Numbers k such that there exists at least an integer in the interval [e*k - 1/k, e*k + 1/k] where e = 2.71828... is Euler's number.at n=27A265742
• Denominator of a sequence of fractions converging to e.at n=12A340738
• Square array read by antidiagonals upwards: T(n,k), n>=0, k>=0, is the number of ways of choosing nonnegative numbers for k indistinguishable (p^n*q)-sided dice so that it is possible to roll every number from 0 to (p^n*q)^k-1, where p and q are distinct primes.at n=43A360439
• Triangle read by rows: T(n,k) is the number of pairs (c,m), where c is a covering of the 1 X (2n) grid with 1 X 2 rectangles and equal numbers of red and blue 1 X 1 squares and m is a matching between red squares and blue squares, such that exactly k matched pairs are adjacent.at n=28A360441
• a(n) is the n-digit denominator of the fraction h/k with h and k coprime positive integers at which abs(h/k-e) is minimal.at n=7A368621
• Prime numbersat n=688812