A301166 Coordination sequence T1 for Zeolite Code RWY.

1, 4, 6, 12, 17, 28, 38, 52, 64, 84, 104, 124, 143, 172, 198, 228, 259, 292, 324, 364, 400, 444, 490, 532, 573, 628, 678, 732, 789, 844, 898, 964, 1024, 1092, 1164, 1228, 1291, 1372, 1446, 1524, 1607, 1684, 1760, 1852, 1936, 2028, 2126

Offset

0,2

Links

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

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 + 4*x + 6*x^2 + 12*x^3 + 16*x^4 + 24*x^5 + 30*x^6 + 32*x^7 + 35*x^8 + 32*x^9 + 34*x^10 + 24*x^11 + 16*x^12 + 12*x^13 + 6*x^14 + 4*x^15) / (1 - x^4) / (1 - x^6)^2.

Crossrefs

Sequence in context: A152519 A240507 A022802 * A310599 A074997 A280383

Adjacent sequences: A301163 A301164 A301165 * A301167 A301168 A301169

Keyword

nonn

Author

Sean A. Irvine, Mar 19 2018

Status

approved