58807

Appears in sequences

• Strong pseudoprimes to base 25.at n=34A020251
• Numbers n such that n and n+1 are differences between 2 positive cubes in at least one way.at n=30A038594
• Composite n such that (n-1)*phi(n) is a perfect square.at n=35A069953
• Numbers of the form (3^s+1)/(3^r+1) for s > 1, 1 <= r <= s-1.at n=13A079672
• 9^n - 3^n + 1.at n=5A155614
• a(n) = 54*n^2 + 1.at n=33A158646
• Number of arrangements of n+2 numbers in 0..2 with each number being the sum mod 3 of two others.at n=7A183877
• T(n,k)=Number of arrangements of n+2 numbers in 0..k with each number being the sum mod (k+1) of two others.at n=43A183884
• Number of arrangements of n+3 numbers in 0..2 with each number being the sum mod 3 of three others.at n=6A183885
• T(n,k)=Number of arrangements of n+3 numbers in 0..k with each number being the sum mod (k+1) of three others.at n=34A183892
• Array of coefficients of polynomials providing the third term of the numerator of the generating function for odd powers (2*m+1) of Chebyshev S-polynomials. The present polynomials are called P(m;2,x^2), m >= 2.at n=33A217479
• a(n) = A015518(A032742(n)) / A015518(A054576(n)).at n=29A280691
• a(n) = A015518(A032742(n)) / A015518(A054576(n)).at n=44A280691
• a(n) = Sum_{d|n, d==1 mod 4} d^5 - Sum_{d|n, d==3 mod 4} d^5.at n=8A321821
• a(n) = Sum_{d|n, d==1 mod 4} d^5 - Sum_{d|n, d==3 mod 4} d^5.at n=17A321821
• a(n) = Sum_{d|n, n/d==1 mod 4} d^5 - Sum_{d|n, n/d==3 mod 4} d^5.at n=8A321829
• a(n) = sigma_10(n^2)/sigma_5(n^2).at n=2A373105