0,2

W. M. Meier, D. H. Olson and Ch. Baerlocher, Atlas of Zeolite Structure Types, 4th Ed., Elsevier, 1996

R. W. Grosse-Kunstleve, Table of n, a(n) for n = 0..1000

R. W. Grosse-Kunstleve, Coordination Sequences and Encyclopedia of Integer Sequences

R. W. Grosse-Kunstleve, G. O. Brunner and N. J. A. Sloane, Algebraic Description of Coordination Sequences and Exact Topological Densities for Zeolites, Acta Cryst., A52 (1996), pp. 879-889.

Sean A. Irvine, Generating Functions for Coordination Sequences of Zeolites, after Grosse-Kunstleve, Brunner, and Sloane

International Zeolite Association, Database of Zeolite Structures

G.f.: (1 + x) * (1 + 2*x + 5*x^2 + 10*x^3 + 17*x^4 + 25*x^5 + 34*x^6 + 40*x^7 + 46*x^8 + 48*x^9 + 46*x^10 + 40*x^11 + 34*x^12 + 25*x^13 + 17*x^14 + 10*x^15 + 5*x^16 + 2*x^17 + x^18) / ((1 - x)^3 * (1 - x + x^2) * (1 + x^2) * (1 + x + x^2) * (1 + x + x^2 + x^3 + x^4) * (1 + x + x^2 + x^3 + x^4 + x^5 + x^6)). - Colin Barker, Dec 18 2015

Sequence in context: A019456 A054062 A301246 * A301102 A301101 A266340

Adjacent sequences: A008038 A008039 A008040 * A008042 A008043 A008044

approved