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A036655
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Numbers d_n used in recurrence for series-parallel numbers.
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2
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1, 2, 2, 6, 2, 18, 2, 46, 14, 126, 2, 454, 2, 1266, 134, 4222, 2, 14202, 2, 46406, 1274, 155502, 2, 531790, 122, 1792810, 13802, 6126334, 2, 21032794, 2, 72121854, 155510, 248396798, 1382, 857944150, 2, 2964896882, 1792818, 10269600622
(list; graph; refs; listen; history; internal format)
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