631828

Appears in sequences

• Triangle T(n,k), n>=1, 0<=k<=(3+3^n)/2, read by rows: row n gives the coefficients of the chromatic polynomial of the Sierpinski gasket graph S_n, highest powers first.at n=19A193277
• Number of n-digit primes that are the sum of six consecutive squares of nonnegative numbers.at n=14A218211