26420

Appears in sequences

• Difference between larger and smaller terms of n-th amicable pair.at n=17A066539
• Interprimes which are of the form s*prime, s=20.at n=25A075295
• Triangle of coefficients of polynomials defined by Binet form: P(n,x) = ((x + d)^n - (x - d)^n)/(2*d), where d = sqrt(x+4).at n=62A162517
• a(n) = n*(3*n^2 + 6*n + 1).at n=20A196507
• Number of partitions p of n such that (number of even numbers in p) >= 2*(number of odd numbers in p).at n=50A241644
• Numbers n whose sum of anti-divisors is a permutation of their digits.at n=39A258786
• Difference between the larger and smaller terms of the n-th amicable pair (x,y) given in A259933.at n=17A275469
• The first Zagreb index of the Aztec diamond AZ(n) (see the Ramanes et al. reference, Theorem 2.1).at n=27A292344
• Expansion of Product_{k>=1} 1/(1 - x^(2*k-1))^(k*(3*k-1)/2).at n=18A294669
• Difference between larger and smaller term of n-th psi-amicable pair, sorted by the smaller members from A323329.at n=40A387643