49042

Appears in sequences

• a(i) is a square mod a(j), i <> j.at n=29A034903
• Expansion of (psi(x) * phi(-x)^4)^2 in powers of x where phi(), psi() are Ramanujan theta functions.at n=43A215472
• Numbers n such that n = x + y, sigma_1(n) = sigma_1(x) + sigma_1(y) and sigma_2(n) = sigma_2(x) + sigma_2(y).at n=30A219033
• Number of length 1+3 0..n arrays with every four consecutive terms having the sum of some three elements equal to three times the fourth.at n=32A248538
• Smallest k>0 such that the elliptic curve y^2 = x^3 - k*x has rank n, if k exists.at n=5A309029
• Numbers k for which rank of the elliptic curve y^2 = x^3 - k*x is 5.at n=0A309100
• Numbers that are the sum of four third powers in eight or more ways.at n=26A345152
• Numbers that are the sum of four third powers in exactly eight ways.at n=19A345153