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 A328572 Primorial base expansion of n converted into its prime product form, but with 1 subtracted from all nonzero digits: a(n) = A003557(A276086(n)). 14
 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 3, 3, 5, 5, 5, 5, 15, 15, 25, 25, 25, 25, 75, 75, 125, 125, 125, 125, 375, 375, 1, 1, 1, 1, 3, 3, 1, 1, 1, 1, 3, 3, 5, 5, 5, 5, 15, 15, 25, 25, 25, 25, 75, 75, 125, 125, 125, 125, 375, 375, 7, 7, 7, 7, 21, 21, 7, 7, 7, 7, 21, 21, 35, 35, 35, 35, 105, 105, 175, 175, 175, 175, 525, 525, 875, 875, 875, 875 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,5 LINKS Antti Karttunen, Table of n, a(n) for n = 0..2310 Antti Karttunen, Data supplement: n, a(n) computed for n = 0..32768 FORMULA a(n) = A003557(A276086(n)). a(n) = A276086(n) / A328571(n). a(n) = A328475(n) / A328573(n). For all n >= 1, 1+A051903(a(n)) = A328114(n). PROG (PARI) A328572(n) = { my(m=1, p=2); while(n, if(n%p, m *= p^((n%p)-1)); n = n\p; p = nextprime(1+p)); (m); }; CROSSREFS Cf. A003557, A051903, A276086, A328114, A328475, A328571, A328573, A328575, A328577. Sequence in context: A307156 A326057 A130778 * A016554 A046533 A046532 Adjacent sequences:  A328569 A328570 A328571 * A328573 A328574 A328575 KEYWORD nonn AUTHOR Antti Karttunen, Oct 20 2019 STATUS approved

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Last modified March 28 05:38 EDT 2020. Contains 333073 sequences. (Running on oeis4.)