4073472
domain: N
Appears in sequences
- Number of points of L1 norm 2n in root system version of E_8 lattice.at n=15A010369
- One eighth of eighth unsigned column of Lanczos triangle A053125.at n=5A054331
- If X_1,...,X_n is a partition of a 2n-set X into 2-blocks then a(n) is equal to the number of 7-subsets of X containing none of X_i, (i=1,...n).at n=11A130813