167310

Appears in sequences

• Starting positions of strings of four 5's in the decimal expansion of Pi.at n=13A083621
• The 3rd Witt transform of A000027.at n=36A147611
• Number of walks within N^2 (the first quadrant of Z^2) starting and ending at (0,0) and consisting of n steps taken from {(-1, -1), (-1, 0), (0, -1), (0, 1), (1, 0), (1, 1)}.at n=10A151372
• T(n, k) = (1/n) * Sum_{d|n} phi(d) * A241171(n/d, k) for n >= 1, T(0, k) = 0^k. Triangle read by rows for 0 <= k <= n.at n=31A327027
• a(n) = Sum_{k=0..n} (-1)^k * binomial(3*k,n-k).at n=24A360087