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Search: id:A089140
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| A089140 |
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Number of subsequences of {1,2,3,...,n} which are p_1-sequences. |
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+0
1
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| 2, 4, 8, 15, 26, 40, 60, 84, 114, 149, 190, 234, 288, 346, 411, 484, 565, 649, 743, 840, 947, 1063, 1185
(list; graph; listen)
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