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 A324119 a(n) = A001221(A156552(n)). 3
 0, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 2, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 2, 2, 2, 1, 2, 1, 1, 2, 2, 2, 1, 1, 1, 3, 2, 1, 1, 1, 1, 2, 2, 1, 1, 2, 1, 3, 1, 1, 1, 2, 1, 3, 2, 1, 1, 1, 2, 2, 2, 2, 2, 1, 2, 2, 1, 1, 2, 1, 2, 2, 2, 2, 2, 1, 1, 3, 2, 1, 2, 3, 3, 3, 2, 1, 2, 2, 2, 3, 3, 3, 2, 1, 1, 3, 2, 1, 2, 1, 1, 3, 1, 1, 1, 1, 1, 3, 2, 1, 2, 3, 2, 2, 2, 2, 2, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,8 LINKS Antti Karttunen, Table of n, a(n) for n = 2..4473 PROG (PARI) A064989(n) = {my(f); f = factor(n); if((n>1 && f[1, 1]==2), f[1, 2] = 0); for (i=1, #f~, f[i, 1] = precprime(f[i, 1]-1)); factorback(f)}; A156552(n) = if(1==n, 0, if(!(n%2), 1+(2*A156552(n/2)), 2*A156552(A064989(n)))); A324119(n) = if(1==n, 0, omega(A156552(n))); CROSSREFS Cf. A001221, A156552. Cf. also A323243, A324104, A324105, A324117 (sigma, phi, tau and number of odd divisors (A001227) similarly permuted). Cf. also A322812. Sequence in context: A096811 A082478 A279060 * A083382 A327168 A329037 Adjacent sequences:  A324116 A324117 A324118 * A324120 A324121 A324122 KEYWORD nonn AUTHOR Antti Karttunen, Feb 21 2019 STATUS approved

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Last modified August 14 19:47 EDT 2020. Contains 336483 sequences. (Running on oeis4.)