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A057312
Coordination sequence T1 for Zeolite Code SAS.
1
1, 4, 10, 19, 30, 45, 65, 90, 118, 145, 175, 212, 257, 306, 350, 394, 446, 510, 581, 644, 703, 769, 850, 942, 1025, 1101, 1182, 1279, 1390, 1492, 1586, 1684, 1798, 1927, 2046, 2157, 2273, 2406, 2554, 2689, 2815, 2948, 3101, 3270, 3422, 3562, 3710
OFFSET
0,2
FORMULA
G.f.: (1 + x) * (1 + x^2) * (1 + x + 2*x^2 + 2*x^3 + 3*x^4 + 4*x^5 + 3*x^6 + 2*x^7 + 2*x^8 + x^9 + x^10) / ((1 - x)^3 * (1 - x + x^2) * (1 + x + x^2 + x^3 + x^4)^2). - Colin Barker, Dec 19 2015
CROSSREFS
Sequence in context: A238705 A022785 A241239 * A219965 A008038 A301248
KEYWORD
nonn
STATUS
approved