343936

Appears in sequences

• Numbers of polypentagons with two connected internal vertices (see Cyvin et al. for precise definition).at n=18A122742
• Number of (n+1)X(2+1) 0..2 arrays with each row and column divisible by 7, read as a base-3 number with top and left being the most significant digits.at n=10A263367
• a(n) is the unique solution to A323410(x) = A362185(n).at n=40A362211
• Expansion of Sum_{k>0} (1/(1-x^k)^6 - 1).at n=29A363696