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A119053
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Triangular numbers composed of digits {0,2,6}.
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2
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6, 66, 666, 66066, 600060, 6626620, 2620626606, 2200022662006, 626622226002066066, 66006260060666006026, 20066002660020662200026, 222220220206620206202066, 22222002022666602062066226, 66222600026062602006000600, 20666666202602626260022660266
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OFFSET
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1,1
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COMMENTS
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LINKS
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FORMULA
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MATHEMATICA
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Select[Flatten[FromDigits /@ Tuples[{0, 2, 6}, 13]], OddQ[ Sqrt[ 8 # + 1]] &] //Rest (* The program generates the first 8 terms of the sequence. *) (* Harvey P. Dale, Sep 26 2023 *)
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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