Let G denote the 7-node, 12-edge graph formed from a hexagon with main diagonals drawn and a node at the center; a(n) = number of magic labelings of G with magic sum 2n.
A244866
Let G denote the 7-node, 12-edge graph formed from a hexagon with main diagonals drawn and a node at the center; a(n) = number of magic labelings of G with magic sum 2n.
Terms
- a(0) =1a(1) =18a(2) =114a(3) =438a(4) =1263a(5) =3024a(6) =6356a(7) =12132a(8) =21501a(9) =35926a(10) =57222a(11) =87594a(12) =129675a(13) =186564a(14) =261864a(15) =359720a(16) =484857a(17) =642618a(18) =839002a(19) =1080702a(20) =1375143a(21) =1730520a(22) =2155836a(23) =2660940a(24) =3256565a(25) =3954366a(26) =4766958a(27) =5707954a(28) =6792003a(29) =8034828
External references
- oeis: A244866