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A061476
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First (leftmost) digit - second digit + third digit - fourth digit .... = 7.
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0
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7, 70, 81, 92, 106, 117, 128, 139, 205, 216, 227, 238, 249, 304, 315, 326, 337, 348, 359, 403, 414, 425, 436, 447, 458, 469, 502, 513, 524, 535, 546, 557, 568, 579, 601, 612, 623, 634, 645, 656, 667, 678, 689, 700, 711, 722, 733, 744, 755, 766, 777, 788
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,1
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LINKS
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MATHEMATICA
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Select[Range[800], Total[Times@@@Partition[Riffle[IntegerDigits[#], {1, -1}, {1, -1, 2}], 2]]==7&] (* Harvey P. Dale, May 01 2022 *)
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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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EXTENSIONS
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More terms from Robert G. Wilson v, May 10 2001 and from Larry Reeves (larryr(AT)acm.org), May 15 2001
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STATUS
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approved
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