153750

Appears in sequences

• Row sums of Riordan array ((1-3x+x^2)/(1-4x+3x^2), x(1-2x)/(1-4x+3x^2)).at n=10A147748
• Number of paths of length n starting at initial node of the path graph P_9.at n=20A178381
• a(n) = Sum_{k >= 0}(-1)^k*binomial(n,5*k).at n=20A289306