Coordination sequence for root lattice B_11.

Terms

a(0) =1a(1) =242a(2) =11242a(3) =210474a(4) =2224178a(5) =15804866a(6) =83999962a(7) =358159802a(8) =1285951458a(9) =4025098770a(10) =11267030346a(11) =28752157898a(12) =67886298898a(13) =150029971938a(14) =313233102138a(15) =622431249242