A057311 Coordination sequence T2 for Zeolite Code ASV.

1, 4, 12, 18, 26, 52, 84, 100, 118, 162, 210, 248, 284, 332, 398, 458, 510, 576, 652, 724, 798, 886, 974, 1056, 1148, 1252, 1362, 1462, 1558, 1680, 1812, 1928, 2042, 2174, 2318, 2456, 2592, 2736, 2890, 3046, 3198, 3364, 3536, 3696, 3866, 4054, 4242

Offset

0,2

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

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 + 2*x + 7*x^2 + x^3 + 12*x^4 + 10*x^5 + 18*x^6 - x^7 + 11*x^8 - 4*x^9 + 5*x^10 - 4*x^11 + 2*x^12) / ((1 - x)^3 * (1 + x^2) * (1 + x + x^2) * (1 + x + x^2 + x^3 + x^4)). - Colin Barker, Dec 20 2015

Crossrefs

Sequence in context: A230628 A074285 A301252 * A063679 A340597 A325234

Adjacent sequences: A057308 A057309 A057310 * A057312 A057313 A057314

Keyword

nonn

Author

Ralf W. Grosse-Kunstleve

Status

approved