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A081410
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a(1)=a(2)=1; a(n)=a(n-1)+a(n-2) + n (mod 3).
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1
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1, 1, 2, 4, 8, 12, 21, 35, 56, 92, 150, 242, 393, 637, 1030, 1668, 2700, 4368, 7069, 11439, 18508, 29948, 48458, 78406, 126865, 205273, 332138, 537412, 869552, 1406964, 2276517, 3683483, 5960000, 9643484, 15603486, 25246970, 40850457
(list; graph; refs; listen; history; internal format)
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