22195

Appears in sequences

• Fourth row of Pascal-(1,5,1) array A081580.at n=9A081590
• Expansion of 1/sqrt((1-x)^2 - 12*x^3).at n=11A098481
• G.f. satisfies: A(x) = A(x^2)^2 + x*A(x^2)^3.at n=36A174512
• First differences of A323289.at n=11A323452
• Counterexamples to a conjecture of Ramanujan about congruences related to the partition function.at n=37A340757
• Triangle read by rows: T(n,k) is the number of acyclic digraphs on n unlabeled nodes with k arcs and a global source, n >= 1, k = 0..n*(n-1)/2.at n=55A350488
• Number of n-node ordered rooted trees of height equal to the number of internal (non-leaf) nodes.at n=11A358588
• Numbers whose square and cube taken together contain each decimal digit at least twice.at n=5A363909