40052

Appears in sequences

• Number of (s(0), s(1), ..., s(2n)) such that s(i) is a nonnegative integer and |s(i) - s(i-1)| = 1 for i = 1,2,...,n, s(0) = 3, s(2n) = 3. Also T(2n,n), where T is defined in A026022.at n=9A026029
• T(n,[ n/2 ]), where T is defined in A026022.at n=18A026034
• Let Do(n) = A006566(n) = n-th dodecahedral number. Consider all integer triples (i,j,k), j >= k>0, with Do(i) = Do(j) + Do(k), ordered by increasing i; sequence gives i values.at n=13A053017
• a(n) = ((4+sqrt(3))*(5+sqrt(3))^nv+v(4-sqrt(3))*(5-sqrt(3))^n)/2.at n=5A162561
• Principal diagonal of the convolution array A213825.at n=18A213826
• a(n) = n*(n + 7)*(n + 14)*(n + 21)*(n + 28)/120.at n=10A264449