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The OEIS is supported by the many generous donors to the OEIS Foundation.
Revisions by Harvey P. Dale
(See also Harvey P. Dale's wiki pageand changes approved by Harvey P. Dale)
(Bold, blue-underlined text is an addition; faded, red-underlined text is a
Showing entries 1-10 | older changes
LINKS
Harvey P. Dale, <a href="/A235700/b235700_1.txt">Table of n, a(n) for n = 1..1000</a>
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MATHEMATICA
NestList[#+Mod[#, 5]&, 1, 80] (* Harvey P. Dale, Oct 20 2024 *)
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MATHEMATICA
LinearRecurrence[{0, 182, 0, -1}, {30, 91, 5490, 16561}, 30] (* Harvey P. Dale, Oct 20 2024 *)
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MATHEMATICA
LinearRecurrence[{3, -3, 1}, {1, 0, -5}, 50] (* Harvey P. Dale, Oct 20 2024 *)
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Product of multiplicities of the prime exponents (signature) of n; a(1) = 0.
(history; published version)
(history; published version)
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MATHEMATICA
Join[{0}, Table[Times@@(Length/@Split[FactorInteger[n][[;; , 2]]]), {n, 2, 100}]] (* Harvey P. Dale, Oct 20 2024 *)
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