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Search: id:A099263
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| A099263 |
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a(n) = 1/40320 8^n + 1/1440 6^n + 1/360 5^n + 1/64 4^n + 11/180 3^n + 53/288 2^n + 103/280 Partial sum of Stirling numbers of second kind S(n,i), i=1..8 (i.e. a(n)=sum_{i=1..8}S(n,i)). |
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| 1, 2, 5, 15, 52, 203, 877, 4140, 21146, 115929, 677359, 4189550, 27243100, 184941915, 1301576801, 9433737120, 69998462014, 529007272061, 4054799902003, 31415584940850, 245382167055488, 1928337630016767, 15222915798289765
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