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 A273165 One half the number of divisors of nonprime numbers that are 3 (mod 4). 1
 2, 2, 2, 2, 2, 2, 3, 3, 2, 2, 2, 3, 2, 2, 2, 2, 4, 2, 3, 2, 2, 3, 3, 2, 2, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Row length numbers of A273164. With the Jan 05 2004 Jovovic comment on A078703 a(n) is also the number of divisors +1 as well as -1 (mod 4) of A091236(n). See the example section of A273164. LINKS FORMULA a(n) = number of divisors of A091236(n)(nonprime numbers 3 (mod 4)). CROSSREFS Cf. A078703, A091236, A273164. Sequence in context: A332025 A212300 A165074 * A336313 A095139 A109038 Adjacent sequences:  A273162 A273163 A273164 * A273166 A273167 A273168 KEYWORD nonn,easy AUTHOR Wolfdieter Lang, Jul 29 2016 STATUS approved

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Last modified August 13 19:30 EDT 2020. Contains 336451 sequences. (Running on oeis4.)