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A245627
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Base 10 digit sum of 11*n.
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1
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0, 2, 4, 6, 8, 10, 12, 14, 16, 18, 2, 4, 6, 8, 10, 12, 14, 16, 18, 11, 4, 6, 8, 10, 12, 14, 16, 18, 11, 13, 6, 8, 10, 12, 14, 16, 18, 11, 13, 15, 8, 10, 12, 14, 16, 18, 11, 13, 15, 17, 10, 12, 14, 16, 18, 11, 13, 15, 17, 19, 12, 14, 16, 18, 11, 13, 15, 17, 19, 21, 14, 16, 18, 11, 13, 15, 17, 19, 21, 23, 16, 18, 11, 13, 15, 17, 19, 21, 23, 25, 18, 2
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OFFSET
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0,2
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COMMENTS
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First term that differs from A136614 is a(91) = 2, compared to A136614(91) = 11.
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LINKS
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FORMULA
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EXAMPLE
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a(90) = 18 because 11 * 90 = 990 and 9 + 9 + 0 = 18.
a(91) = 2 because 11 * 91 = 1001 and 1 + 0 + 0 + 1 = 2.
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MAPLE
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a:= n -> convert(convert(11*n, base, 10), `+`):
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MATHEMATICA
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Table[Plus@@IntegerDigits[11n], {n, 0, 99}]
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PROG
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CROSSREFS
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KEYWORD
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nonn,base,easy
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AUTHOR
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STATUS
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approved
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