38641

Appears in sequences

• a(n) = dot_product(1,2,...,n)*(7,8,...,n,1,2,3,4,5,6).at n=44A026049
• Numbers k such that the continued fraction for sqrt(k) has odd period and if the last term of the periodic part is deleted the two central terms are both 26.at n=6A031614
• Numbers whose base-14 representation has exactly 5 runs.at n=14A043666
• Number of solutions to x^2 + y^2 + z^2 < n^2; number of lattice points inside a sphere of radius n.at n=21A078183
• Third row of Pascal-(1,7,1) array A081582.at n=35A081593
• Special rounded values of the generalized hypergeometric function of the type 5F0.at n=8A153029
• a(n) = 2*prime(n)^2 - 1.at n=33A179262
• Number of strings of n numbers x(i) in -1..1 with sums of x(i) and of x(i)*x(i+1) both zero.at n=12A183936
• 1-sequence of reduction of (3n-1) by x^2 -> x+1.at n=14A192310
• a(n) = n! * Sum_{k=0..floor(n/4)} (-1)^k / (n-4*k)!.at n=8A337751
• a(n) = n! * Sum_{k=0..floor(n/4)} (-1)^k / (4*k)!.at n=8A349087
• Expansion of e.g.f. exp( x * exp(-x^3) ).at n=8A358063
• E.g.f. satisfies A(x) = exp(x*A(-x^3)).at n=8A367722
• Truncated hex numbers: a(n) = 24*n^2 + 6*n + 1.at n=40A381424