150645

Appears in sequences

• a(n) = (n+1)*(n+2)^2*(n+3)^2*(n+4)*(3n^2 + 15n + 20)/2880.at n=8A107891
• Expansion of ( 1 + 9 * Sum_{k>=0} x^(2^k)/(1 - x^(2^k)) )^(1/3).at n=9A382334
• Numbers k such that 256 * 3^k + 1 is prime.at n=43A390051