825944

Appears in sequences

• Sums of 2 distinct powers of 7.at n=25A038481
• Sums of two powers of 7.at n=32A055258
• Expansion of phi_{7, 4}(x) where phi_{r, s}(x) = Sum_{n, m>0} m^r * n^s * x^{m*n}.at n=7A280025
• a(n) = [x^n] Product_{k>=1} 1/(1 - n*x^(k^2)).at n=7A302836