Coordination sequence for 13-dimensional cubic lattice.

Terms

a(0) =1a(1) =26a(2) =338a(3) =2938a(4) =19266a(5) =101946a(6) =454610a(7) =1761370a(8) =6065410a(9) =18892250a(10) =53972178a(11) =143027898a(12) =354870594a(13) =830764794a(14) =1847023698a(15) =3921503898a(16) =7988589570a(17) =15677993370a(18) =29746958930a(19) =54734043130a(20) =97926519106a(21) =170763634106a(22) =290835675858