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A117486
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G.f.: 1/((1-x)*(1-x^2)*(1-x^3)*(1-x^4))^2.
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4
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1, 2, 5, 10, 20, 34, 59, 94, 149, 224, 334, 480, 685, 950, 1307, 1762, 2357, 3100, 4050, 5220, 6685, 8466, 10659, 13294, 16494, 20298, 24859, 30234, 36609, 44056, 52806, 62952, 74770, 88380, 104112, 122116, 142786, 166304, 193134, 223504, 257954, 296756, 340544
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,2
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COMMENTS
| Molien series for S_4 X S_4, cf. A001400.
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PROG
| (MAGMA) n:=4; G:=SymmetricGroup(n); H:=DirectProduct(G, G); MolienSeries(H);
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CROSSREFS
| Column four of table A115994.
Cf. A001400, A001399, A117485, A117487.
Cf. A000027, A006918, A115994.
Sequence in context: A000099 A039690 A126105 * A000710 A160461 A117487
Adjacent sequences: A117483 A117484 A117485 * A117487 A117488 A117489
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KEYWORD
| nonn
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AUTHOR
| Alford Arnold (Alford1940(AT)aol.com), Mar 22 2006
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EXTENSIONS
| Entry revised by N. J. A. Sloane (njas(AT)research.att.com), Mar 10 2007
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