71424

Appears in sequences

• Triangle T(n,k), 0<=k<=n, formed from coefficients when formula for n-th diagonal of triangle in A059718 is written as a sum of binomial coefficients.at n=53A059720
• Triangle read by rows: T(n,k) is the number of alternating max-precedes-min permutations on [n+2] with 1 in position k+2, 0<=k<=n.at n=53A104346
• Expansion of e.g.f. x/(1+sin(x)).at n=9A108124
• Number of permutations of 1..n arranged in a circle with exactly 4 local maxima.at n=9A159712
• Row sums of triangle defined in A113820.at n=30A160968
• Number of fixed points in all cycle-up-down permutations of {1,2,...,n}.at n=9A186365
• Number of 3-step king's tours on an n X n board summed over all starting positions.at n=36A186862
• Triangle read by rows: T(n,k) (n>=0, 0<=k<=floor(n/2)) is the number of permutations of n and k valleys (considered cyclically).at n=29A263789