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A123894
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G.f.: -(1+x^2)*(1+2*x^2)*(1+3*x^2)*(1+4*x^2)/(-1-10*x^2-35*x^4-50*x^6-24*x^8+5*x+40*x^3+105*x^5+100*x^7+24*x^9).
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1, 5, 25, 115, 525, 2405, 11025, 50525, 231525, 1060979, 4862065, 22280875, 102104045, 467901065, 2144199765, 9825991725, 45028504525, 206347239279, 945605099381, 4333321849875, 19857843661645, 91000384646845, 417017585036185, 1911021221349165
(list; graph; refs; listen; history; internal format)
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