338430

Appears in sequences

• Numbers m such that N = (am+1)(bm+1)(cm+1) is a 3-Carmichael number (A087788), where a,b,c = 1,2,53.at n=9A065695
• Principal diagonal of the convolution array A213548.at n=28A213549
• G.f. A(x) satisfies A(x) = 1 + x * A(x)^4 * (2 + A(x)).at n=5A336540
• Square array T(n,k), n>=0, k>=0, read by antidiagonals, where T(0,k) = 1 and T(n,k) = (1/n) * Sum_{j=1..n} 3^j * binomial(n,j) * binomial(k*n,j-1) for n > 0.at n=50A336575