88620

Appears in sequences

• Theta series of A*_20 lattice.at n=40A023932
• Triangle T(n, k) = Sum_{m=0..k} Sum_{j=0..m} Multinomial(n-k-m-j, j, m, k), read by rows.at n=59A141724
• Number of (w,x,y,z) with all terms in {1,...,n} and median<mean.at n=21A212135
• Numbers k such that psi(k^2) = k, psi = A002322; indices of 1 in A341857.at n=45A341858
• Length of the long leg in the unique primitive Pythagorean triple whose inradius is A002378(n) and such that its long leg and its hypotenuse are consecutive natural numbers.at n=14A384288