Triangle read by rows: row n gives the h-vector of the n-th halohedron.

Terms

a(0) =1a(1) =1a(2) =1a(3) =1a(4) =3a(5) =1a(6) =1a(7) =7a(8) =7a(9) =1a(10) =1a(11) =13a(12) =27a(13) =13a(14) =1a(15) =1a(16) =21a(17) =76a(18) =76a(19) =21a(20) =1a(21) =1a(22) =31a(23) =175a(24) =300a(25) =175a(26) =31a(27) =1a(28) =1a(29) =43