Coordination sequence T1 for feldspar.

Terms

a(0) =1a(1) =4a(2) =10a(3) =20a(4) =38a(5) =58a(6) =80a(7) =112a(8) =144a(9) =180a(10) =226a(11) =270a(12) =320a(13) =380a(14) =436a(15) =500a(16) =574a(17) =642a(18) =720a(19) =808a(20) =888a(21) =980a(22) =1082a(23) =1174a(24) =1280a(25) =1396a(26) =1500a(27) =1620a(28) =1750a(29) =1866