31160
domain: N
Appears in sequences
- Number of n-step walks on square lattice in the first quadrant which finish at distance n-3 from the x-axis.at n=37A005564
- Row sums of triangle A105632.at n=11A105633
- Triangle read by rows: T(n,k) = the number of Dyck paths of semilength n with k UDUU's, 0 <= k <= floor((n-1)/2).at n=37A116424
- a(n) = 19*n*(n+1).at n=40A173309
- Let p = A002145(n) be the n-th prime of the form 4k+3, then a(n) is the smallest number such that p is the smallest prime of the form 4k+3 for which 4*a(n)+2-p is prime.at n=43A217696
- Expansion of Product_{k>=1} (1 + x^k) * (1 + x^(2*k)) * (1 + x^(3*k)) * (1 + x^(4*k)) / ((1 - x^k) * (1 - x^(2*k)) * (1 - x^(3*k)) * (1 - x^(4*k))).at n=16A327049
- E.g.f. A(x) satisfies A(x) = exp( 2 * x * A(x)^(5/2) / (1 - x * A(x)) ).at n=4A372165
- Indices of records in A045537.at n=27A373942
- Number of fixed polybends with n cells.at n=15A392391