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Search: id:A073685
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| A073685 |
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Group the composite numbers so that the sum of each group is a prime: (4, 6, 8, 9, 10), (12, 14, 15), (16, 18, 20, 21, 22), (24, 25, 26, 27, 28, 30, 32, 33, 34, 35, 36, 38, 39, 40, 42, 44, 45, 46, 48, 49, 50, 51, 52, 54, 55), ...; sequence gives number of terms in each group. |
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3
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| 5, 3, 5, 25, 2, 5, 2, 2, 5, 8, 6, 4, 2, 3, 5, 2, 2, 18, 2, 35, 8, 21, 2, 2, 2, 6, 17, 3, 6, 9, 2, 8, 11, 7, 5, 15, 27, 3, 4, 2, 18, 3, 7, 2, 2, 22, 4, 12, 27, 31, 2, 16, 16, 5, 2, 16, 2, 21, 7, 12, 2, 2, 4, 22, 8, 10, 2, 7, 2, 2, 8, 7, 8, 2, 4, 22, 2, 30, 8, 21, 2, 3, 28, 24, 4, 10, 7, 4, 6, 3, 2
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