3149280

Appears in sequences

• Triangle whose (i,j)-th entry is binomial(i,j)*6^(i-j)*9^j.at n=24A038263
• Triangle whose (i,j)-th entry is binomial(i,j)*9^(i-j)*6^j.at n=24A038296
• a(n) = Sum_{k=1..n} floor(k/2)! * floor((n - k)/2)! binomial((n-floor(k/2)-1), n-k).at n=16A339150
• Numbers k such that k, A001414(k) and A083345(k) are all multiples of 3, where A001414 is fully additive with a(p) = p, and A083345 is the numerator of the fully additive function with a(p) = 1/p.at n=29A373476
• Triangle read by rows: T(n,k) is the number of crystallized linear chord diagrams on n chords with k short chords.at n=46A375504