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Search: id:A026898
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| A026898 |
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Sum((n-k+1)^k, k=0..n). |
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+0 11
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| 1, 2, 4, 9, 23, 66, 210, 733, 2781, 11378, 49864, 232769, 1151915, 6018786, 33087206, 190780213, 1150653921, 7241710930, 47454745804, 323154696185, 2282779990495, 16700904488706, 126356632390298
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