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A358044
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a(n) is the smallest number k such that n consecutive integers starting at k have the same number of triangular divisors (A007862).
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2
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OFFSET
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1,3
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COMMENTS
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LINKS
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EXAMPLE
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55 has 2 triangular divisors {1, 55}, 56 has 2 triangular divisors {1, 28} and 57 has 2 triangular divisors {1, 3}. These are the first 3 consecutive numbers with the same number of triangular divisors, so a(3) = 55.
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CROSSREFS
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KEYWORD
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nonn,more,hard
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AUTHOR
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STATUS
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approved
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