41808
domain: N
Appears in sequences
- Theta series of D*_13 lattice.at n=20A022066
- Triangle read by rows: T(n,k) is number of Grand Motzkin paths of length n having k returns to the x-axis (i.e., d or u steps hitting the x-axis).at n=53A109193
- a(n) = a(n-1) + 2*a(n-2) - a(n-3) - a(n-4), a(0)=0, a(1)=8, a(2)=10, a(3)=18.at n=19A153382
- Second bisection of A153382.at n=9A153388
- Number of permutations of 1..n+9 with each element displaced by at least 5.at n=3A183242
- T(n,k) = Number of permutations of 1..n+2*k-1 with each element displaced by at least k.at n=31A183244
- Number of permutations of 1..2*n+3 with each element displaced by at least n.at n=4A183246
- Number of ways of writing n as a sum of 13 squares.at n=5A276285
- a(n) = (4/15)*n*(n - 1)*(n^3 - 9*n^2 + 26*n - 9).at n=13A319576