119548

Appears in sequences

• Number of terms in 5th derivative of a function composed with itself n times.at n=37A022815
• Number of derangements of {1,2,...,n} having no adjacent transpositions.at n=9A177258
• 15-gonal (or pentadecagonal) pyramidal numbers: a(n) = n*(n+1)*(13*n-10)/6.at n=38A177890
• Number of lower triangles of an n X n 0..2 array with new values introduced in row major order 0..2 and no element equal to more than one horizontal or vertical neighbor.at n=4A194534
• T(n,k) is the number of lower triangles of an n X n 0..k array with new values introduced in row major order 0..k and no element equal to more than one horizontal or vertical neighbor.at n=19A194540