40216

Appears in sequences

• a(n) = number of (s(0), s(1), ..., s(n)) such that every s(i) is an integer, s(0) = 0, |s(i) - s(i-1)| = 1 for i = 1,2; |s(i) - s(i-1)| <= 1 for i >= 3, s(n) = 4. Also a(n) = T(n,n-4), where T is the array defined in A024996.at n=9A026071
• Expansion of (1+2*x+3*x^2)/((1-x)^3*(1-x^2)).at n=42A055232
• Number of permutations satisfying -k<=p(i)-i<=r and p(i)-i not in I, i=1..n, with k=3, r=3, I={0,1,2}.at n=24A079988
• Numbers k such that Bernoulli number B_{k} has denominator 61410.at n=20A295591
• Maximum detour index of any bipartite graph on n nodes.at n=43A296819
• First term is 1; thereafter, if u and v are consecutive terms, with decimal expansions u = bc...ef, v = hi...jk, then v-u has decimal expansion efhi, formed by concatenating the last two digits of u and the first two digits of v. If there is a choice for v, pick the smallest.at n=9A367363