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 + 31*x^4 + 49*x^5 + 91*x^9 + 10*x^2 + 19*x^3 + 65*x^6 + 73*x^7 + 84*x^8 + 84*x^10 + 75*x^11 + 67*x^12 + 49*x^13 + 30*x^14 + 18*x^15 + x^16 - 16*x^17 - 30*x^18 - 47*x^19 - 68*x^20 - 77*x^21 - 83*x^22 - 87*x^24 - 15*x^29 - 4*x^31 - 73*x^25 - 2*x^34 - 53*x^27 - 30*x^28 - 10*x^30 + x^32 - 93*x^23 - 64*x^26) / (1 - x^5)^2 / (1 - x^8) / (1 - x^14).
CROSSREFS
KEYWORD
nonn
AUTHOR
Sean A. Irvine, Mar 17 2018
STATUS
approved