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A090426
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Let b(0)=0; b(1)=1; b(n+2)=(pi-1/pi)*b(n+1)+b(n). a(n)=floor(b(n)).
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4
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0, 1, 2, 8, 28, 88, 277, 872, 2742, 8615, 27066, 85032, 267137, 839236, 2636539, 8282934, 26021606, 81749286, 256822957, 806833116, 2534740992, 7963123679, 25016890850, 78592880512, 246906816042, 775680639401, 2436872598274
(list; graph; refs; listen; history; internal format)
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