51148
domain: N
Appears in sequences
- a(n) = sum of terms in n-th row of A078448.at n=28A078449
- Position of prime(n)# in A025487.at n=16A098719
- Number of partitions of 2n prime to 3,5 with all odd parts occurring with even multiplicities. There is no restriction on the even parts.at n=42A103259
- A triangular sequence of six back recursive polynomial that are Hermite H(x,n) like and alternating orthogonal on domain {-Infinity,Infinity} and weight function Exp[ -x^2/2]:k=6 P(x, n) = Sum[If[Mod[m, 2] == 1, (m + 1)*x^m*P(x, n - m), n^(m/2)*P(x, n - m)], {m, 1, k}].at n=50A138093
- A triangular sequence of eight back recursive polynomials that are Hermite H(x,n) like and alternating orthogonal on domain {-Infinity,Infinity} and weight function Exp[ -x^2/2]:k=8 P(x, n) = Sum[If[Mod[m, 2] == 1, (m + 1)*x^m*P(x, n - m), n^(m/2)*P(x, n - m)], {m, 1, k}].at n=50A138094
- Antidiagonal sums of the convolution array A213783.at n=36A213760
- First appearance of n in A016014, or 0 if n never occurs.at n=40A239800
- a(n) = n*(16*n^2 - 21*n + 7)/2.at n=19A260260
- Inverse permutation to A181815.at n=52A329901
- Inverse permutation to A341351.at n=29A341352
- Number of distinct circles that can be constructed from an n x n square grid of points using only a compass.at n=18A359931