A008224 Coordination sequence T6 for Zeolite Code PAU.

1, 4, 9, 17, 29, 45, 65, 89, 117, 149, 185, 225, 268, 314, 364, 418, 476, 538, 605, 676, 750, 827, 907, 991, 1078, 1169, 1264, 1362, 1464, 1570, 1680, 1794, 1913, 2036, 2161, 2289, 2421, 2557, 2697, 2842, 2992, 3145, 3301, 3460, 3622, 3788, 3958, 4132, 4309

Offset: 0

Author

Ralf W. Grosse-Kunstleve

Keywords

• nonn

Comments

For n = 3 to n = 12, a(n) is the sum of two squares separated by 3 (3rd diagonal of A055096). - Avi Friedlich, Apr 01 2015

References

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

Links

• 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