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A072921 a(1)=1; a(n) = a(n-1) + [sum of all decimal digits present so far in the sequence]. +0
5
1, 2, 5, 13, 25, 44, 71, 106, 148, 203, 263, 334, 415, 506, 608, 724, 853, 998, 1169, 1357, 1561, 1778, 2018, 2269, 2539, 2828, 3137, 3460, 3796, 4157, 4535, 4930, 5341, 5765, 6212, 6670, 7147, 7643, 8159, 8698, 9268, 9863, 10484, 11122 (list; graph; listen)
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Last modified December 8 08:31 EST 2009. Contains 170430 sequences.


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