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A121173
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Sequence S with property that for n is S, a(n)=a(1)+a(2)+...+a(n-1) and for n not in S, a(n)=n+1.
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2
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2, 2, 4, 8, 6, 22, 8, 52, 10, 114, 12, 240, 14, 494, 16, 1004, 18, 2026, 20, 4072, 22, 8166, 24, 16356, 26, 32738, 28, 65504, 30, 131038, 32, 262108, 34, 524250, 36, 1048536, 38, 2097110, 40, 4194260, 42, 8388562, 44, 16777168, 46, 33554382
(list; graph; refs; listen; history; internal format)
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