17945

Appears in sequences

• Number of subsets S of {1,2,...,n} which contain a number that is greater than the sum of the other numbers in S.at n=32A095944
• Diagonal sums of number triangle A110180.at n=12A110182
• Product of successive primes minus 2.at n=31A124669
• Retrograde trajectory of 13 under map n -> A132948(n).at n=35A132947
• Sum of distinct residues of all factorials mod 2^n.at n=12A210337
• The number of even permutations p of 1,2,...,n such that -1<=p(i)-i<=2 for i=1,2,...,n.at n=17A268306
• Numbers k such that k![4] + 2 is prime, where k![4] = A007662(k) = quadruple factorial.at n=39A283553
• Numbers whose Euler totient function is equal to the product of the number of divisors of their k first powers, for some k.at n=36A283759
• Number of length-n binary vectors beginning with 0, ending with 1, and avoiding 4 consecutive 0's and 4 consecutive 1's.at n=18A283834
• Numbers of the form p*q*r where p, q, r are distinct primes congruent to 1 mod 4 such that Legendre(p/q) = Legendre(p/r) = Legendre(q/r) = -1.at n=13A323271
• Primitive terms of A338890.at n=32A338892