29531

Properties

Appears in sequences

• Numerator of Sum_{i+j+k=n; i,j,k > 0} 1/(i*j*k).at n=6A002545
• Primes of the form sum 6d/(2 + mu(d)) for some k and all d dividing k.at n=38A069548
• Seventh column of triangle A075181 divided by 4!.at n=2A075187
• Prime Friedman numbers.at n=21A112419
• Father primes of order 11.at n=29A136080
• Triangle c(n,k) of the numerators of coefficients [x^k] P(n,x) of the polynomials P(n,x) of A129891.at n=38A140749
• Number of walks within N^3 (the first octant of Z^3) starting at (0,0,0) and consisting of n steps taken from {(-1, -1, 1), (-1, 1, -1), (1, -1, 1), (1, 1, 0)}.at n=10A148633
• Smallest primes p = p(k) with (p(k)+p(k+1)+p(k+2))/15 an integer.at n=26A168556
• Reduced numerators of integral of the Stirling numbers of first kind.at n=48A238683
• a(n) is the number of partitions of n such that the number of parts having multiplicity > 1 is a part.at n=41A241408
• Primes whose trajectories under the map x -> A039951(x) enter the cycle {83, 4871} (conjectured).at n=7A252812
• Primes of the form abs(n^5 - 99n^4 + 3588n^3 - 56822n^2 + 348272n - 286397) in order of increasing nonnegative n.at n=34A272444
• Triangle read by rows: T(n,k) is the numerator of the generalized harmonic number H(n,k) of rank k (n >= 1, 0 <= k <= n - 1).at n=29A323854
• Square array read by ascending antidiagonals: T(n,k) = [x^k] 1/(1 - x) * Legendre_P(k, (1 + x)/(1 - x))^n for n, k >= 0.at n=39A364113
• a(2) = a(3) = 1; for n >3, a(n) = smallest prime factor of n-th Tribonacci number.at n=56A366583
• Prime numbersat n=3206