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A210634
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G.f. for Ehrhart quasi-polynomials for hyperplane arrangements of type E_6.
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1
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 3, 9, 20, 42, 78, 139, 231, 372, 573, 861, 1254, 1791, 2499, 3432, 4629, 6162, 8085, 10492, 13455, 17094, 21503, 26832, 33201, 40795, 49764, 60333, 72687, 87096, 103785, 123075, 145236, 170646, 199626, 232617, 269997, 312277, 359898, 413448, 473438, 540540, 615342, 698608
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OFFSET
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0,14
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REFERENCES
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Blass, Andreas; Sagan, Bruce E. Characteristic and Ehrhart polynomials. J. Algebraic Combin. 7 (1998), no. 2, 115--126. MR1609889 (99c:05204)
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LINKS
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Table of n, a(n) for n=0..54.
Index to sequences with linear recurrences with constant coefficients, signature (3,0,-7,3,6,0,-6,-3,7,0,-3,1).
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FORMULA
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G.f. = x^12*f(1)^3*f(2)^3*f(3) where f(k)=1/(1-x^k).
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CROSSREFS
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A164680 is similar but has a different offset.
Sequence in context: A145070 A011796 A164680 * A176163 A203861 A073801
Adjacent sequences: A210631 A210632 A210633 * A210635 A210636 A210637
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KEYWORD
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nonn,easy
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AUTHOR
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N. J. A. Sloane, Mar 25 2012
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STATUS
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approved
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