Dimension of space of invariants of n-th tensor power of 7-dimensional irreducible representation of G_2. Also the number of n-leaf, otherwise trivalent graphs in a disk such that all faces have at least 6 sides.
A059710
Dimension of space of invariants of n-th tensor power of 7-dimensional irreducible representation of G_2. Also the number of n-leaf, otherwise trivalent graphs in a disk such that all faces have at least 6 sides.
Terms
- a(0) =1a(1) =0a(2) =1a(3) =1a(4) =4a(5) =10a(6) =35a(7) =120a(8) =455a(9) =1792a(10) =7413a(11) =31780a(12) =140833a(13) =641928a(14) =3000361a(15) =14338702a(16) =69902535a(17) =346939792a(18) =1750071307a(19) =8958993507a(20) =46484716684a(21) =244187539270
External references
- oeis: A059710