182016

Appears in sequences

• Determinant of n X n matrix containing the first n^2 4-almost primes in increasing order.at n=3A118779
• a(n) = 225*n^2 - 251*n + 70.at n=29A156810
• Triangle read by rows, T(n,k) for 0<=k<=n, generalizes the colored Motzkin paths of A129400.at n=47A201641