175869
domain: N
Appears in sequences
- Number of side-n hexagonal 0..4 arrays with values nondecreasing E, SW and SE.at n=2A216933
- T(n,k)=Number of side-n hexagonal 0..k arrays with values nondecreasing E, SW and SE.at n=17A216937
- Number of side-3 hexagonal 0..n arrays with values nondecreasing E, SW and SE.at n=3A216939
- Expansion of Sum_{k>0} x^(2*k)/(1+x^k)^6.at n=27A363614