Number of side-3 hexagonal 0..n arrays with values nondecreasing E, SW and SE.
A216939
Number of side-3 hexagonal 0..n arrays with values nondecreasing E, SW and SE.
Terms
- a(0) =52a(1) =1211a(2) =17336a(3) =175869a(4) =1374208a(5) =8737047a(6) =46978360a(7) =219784500a(8) =914221308a(9) =3438633452a(10) =11853180096a(11) =37855195604a(12) =113017101804a(13) =317780021548a(14) =846830343064
External references
- oeis: A216939