Triangle, read by rows, where g.f. of row n equals the product of (1-x)^n and the g.f. of the coordination sequence for root lattice B_n, for n >= 0.
A109001
Triangle, read by rows, where g.f. of row n equals the product of (1-x)^n and the g.f. of the coordination sequence for root lattice B_n, for n >= 0.
Terms
- a(0) =1a(1) =1a(2) =1a(3) =1a(4) =6a(5) =1a(6) =1a(7) =15a(8) =23a(9) =1a(10) =1a(11) =28a(12) =102a(13) =60a(14) =1a(15) =1a(16) =45a(17) =290a(18) =402a(19) =125a(20) =1a(21) =1a(22) =66a(23) =655a(24) =1596a(25) =1167a(26) =226a(27) =1a(28) =1a(29) =91
External references
- oeis: A109001