285704

Appears in sequences

• Sum of Gaussian binomial coefficients [ n,k ] for q=7.at n=5A006121
• a(n) = 2*(3 + 2 n + 3 n^2 + 3 n^3 + 3 n^4 + n^5 + n^6).at n=7A276351
• Square array read by descending antidiagonals: T(n,k) is the number of subgroups of the elementary abelian group of order A000040(k)^n for n >= 0 and k >= 1.at n=41A370887