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A341820
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Lexicographically earliest sequence of distinct terms > 0 such that the n-th digit of the sequence is present in the product a(n)*a(n+1).
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4
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1, 10, 11, 19, 6, 2, 5, 18, 7, 3, 15, 8, 16, 17, 9, 12, 13, 14, 37, 26, 4, 43, 21, 31, 20, 50, 27, 23, 28, 44, 29, 25, 24, 35, 40, 33, 22, 46, 30, 34, 36, 39, 41, 49, 38, 45, 47, 51, 32, 54, 56, 58, 42, 57, 48, 53, 52, 62, 55, 59, 60, 61, 63, 64, 66, 65, 67, 68, 74, 69, 70, 71, 73, 72, 81, 79, 76
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OFFSET
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1,2
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LINKS
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EXAMPLE
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The 1st digit of the sequence [1] is present in a(1)*a(2) = 1 * 10 = 10;
the 2nd digit of the sequence [1] is present in a(2)*a(3) = 10 * 11 = 110;
the 3rd digit of the sequence [0] is present in a(3)*a(4) = 11 * 19 = 209;
the 4th digit of the sequence [1] is present in a(4)*a(5) = 19 * 6 = 114;
the 5th digit of the sequence [1] is present in a(5)*a(6) = 6 * 2 = 12;
the 6th digit of the sequence [1] is present in a(6)*a(7) = 2 * 5 = 10;
the 7th digit of the sequence [9] is present in a(7)*a(8) = 5 * 18 = 90;
etc.
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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