13835745

Appears in sequences

• Number of labeled triangular cacti with 2n+1 nodes (n triangles).at n=5A034941
• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*11^j.at n=32A038229
• Triangle whose (i,j)-th entry is binomial(i,j)*11^(i-j)*3^j.at n=31A038317
• Irregular triangle read by rows where T(n,k) is the number of (d + 1)-uniform hypertrees spanning n + 1 vertices, where d = A027750(n,k).at n=24A326374
• Triangle read by rows: T(n,k) is the number of simple quasi series-parallel matroids on [n] with rank k, 1 <= k <= n.at n=60A361353
• Triangle read by rows: T(n,k) is the number of simple series-parallel matroids on [n] with rank k, 1 <= k <= n.at n=60A361355