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A049845
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a(n)=Sum{T(m,k): k=1,2,...,m-1; m=2,3,...,n}, array T as in A049843.
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0
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1, 4, 8, 15, 24, 36, 51, 69, 91, 117, 146, 176, 207, 248, 291, 335, 386, 439, 491, 553, 616, 686, 753, 834, 920, 1004, 1097, 1193, 1292, 1394, 1503, 1614, 1732, 1851, 1980, 2109, 2250, 2399, 2552, 2702, 2851, 3014, 3180
(list; graph; refs; listen; history; internal format)
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