2280960

Appears in sequences

• LCM of totients of binomial coefficients C(n,j), j = 0..n.at n=22A064451
• Triangle T(n, k) = H(n, k+1) - 2*H(n, k) - H(n, k-1), where H(n, k) = A060821(n+3, k), read by rows.at n=33A140873
• Catalan number analogs for totienomial coefficients (A238453).at n=14A245798