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 A175462 Number of divisors of integers of form 5 + 8n. 1
 2, 2, 4, 2, 2, 6, 2, 2, 4, 4, 4, 4, 2, 2, 6, 4, 4, 4, 2, 2, 8, 2, 2, 8, 2, 4, 4, 4, 2, 4, 6, 4, 6, 2, 2, 8, 2, 4, 4, 2, 6, 6, 4, 2, 8, 4, 2, 4, 2, 2, 10, 4, 2, 8, 4, 4, 4, 2, 4, 6, 4, 4, 4, 2, 4, 12, 4, 2, 6, 2, 4, 4, 4, 4, 4, 6, 2, 8, 4, 6, 8, 2, 2, 4, 2, 4, 12, 2, 2, 4, 6, 2, 8, 4, 2, 12, 2, 4, 4, 2, 8, 4, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,1 COMMENTS All terms are even. LINKS FORMULA a(n) = d(5 + 8n), n = 0, 1, 2, ... a(n) = A000005(A004770(n)). PROG (PARI) a(n) = numdiv(5+8*n); \\ Michel Marcus, Oct 15 2013 CROSSREFS Cf. A004770 Numbers of form 8n + 5, A007521 Primes of form 8n + 5. A000005 d(n) : number of divisors of n. Sequence in context: A213431 A261891 A321320 * A133946 A286250 A278244 Adjacent sequences:  A175459 A175460 A175461 * A175463 A175464 A175465 KEYWORD nonn AUTHOR Zak Seidov, May 23 2010 STATUS approved

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Last modified July 17 08:42 EDT 2019. Contains 325098 sequences. (Running on oeis4.)