A057315 Coordination sequence T2 for Zeolite Code SAV.

1, 4, 9, 17, 29, 45, 65, 88, 114, 144, 177, 214, 256, 300, 347, 399, 453, 510, 572, 637, 706, 779, 854, 933, 1016, 1102, 1193, 1287, 1383, 1484, 1588, 1694, 1805, 1920, 2038, 2160, 2285, 2413, 2545, 2681, 2821, 2964, 3110, 3260, 3413, 3569, 3729, 3893

Offset

0,2

Links

Sean A. Irvine, Table of n, a(n) for n = 0..1000

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

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

International Zeolite Association, Database of Zeolite Structures

Formula

G.f.: (1 + x) * (1 + x + 2*x^2 + 2*x^3 + 3*x^4 + 3*x^5 + 3*x^6 + 2*x^7 + 3*x^8 + 2*x^9 + 3*x^10 + 3*x^11 + 3*x^12 + 2*x^13 + 2*x^14 + x^15 + x^16) / ((1 - x)^3 * (1 + x + x^2) * (1 - x + x^2 - x^3 + x^4 - x^5 + x^6) * (1 + x + x^2 + x^3 + x^4 + x^5 + x^6)). - Colin Barker, Dec 20 2015

Crossrefs

Sequence in context: A008028 A008002 A057314 * A008110 A008224 A036594

Adjacent sequences: A057312 A057313 A057314 * A057316 A057317 A057318

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved