5012280

Appears in sequences

• Theta series of 52-dimensional lattice of det 2^26 and minimal norm 3.at n=4A018234
• Theta series of (putative) extremal 2-modular even lattice in dimension 52.at n=4A034607
• Triangle S(n,k) by rows: coefficients of 4^((n-1)/2)*(x^(1/4)*d/dx)^n when n is odd, and of 4^(n/2)*(x^(3/4)*d/dx)^n when n is even.at n=42A223170
• Triangle S(n,k) by rows: coefficients of 4^(n/2)*(x^(3/4)*d/dx)^n when n=0,2,4,6,...at n=22A223528
• Numerator of the harmonic mean of the first n 10-gonal numbers.at n=5A250550