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 + 32*x^4 + 46*x^5 + 87*x^9 + 10*x^2 + 20*x^3 + 63*x^6 + 78*x^7 + 85*x^8 + 87*x^10 + 79*x^11 + 62*x^12 + 45*x^13 + 32*x^14 + 17*x^15 - 17*x^17 - 32*x^18 - 45*x^19 - 62*x^20 - 79*x^21 - 87*x^22 - 85*x^24 - 20*x^29 - 4*x^31 - 78*x^25 - 46*x^27 - 32*x^28 - 10*x^30 - x^32 - 87*x^23 - 63*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).
CROSSREFS
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Mar 17 2018
STATUS
approved