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

0,2

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

Crossrefs

Sequence in context: A057314 A057315 A008110 * A036594 A181286 A008138

Adjacent sequences: A008221 A008222 A008223 * A008225 A008226 A008227

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved