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Search: id:A135570
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| A135570 |
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a(n) = 1+[sum_{i=1..n} S2(i)*2^i], where S2(n) is digit sum of n, n in binary notation. |
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1
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| 1, 3, 7, 23, 39, 103, 231, 615, 871, 1895, 3943, 10087, 18279, 42855, 92007, 223079, 288615, 550759, 1075047, 2647911, 4745063, 11036519, 23619431, 57173863, 90728295, 191391591, 392718183, 929589095, 1734895463, 3882379111
(list; graph; listen)
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