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A336124 a(n) = A122111(n) mod 4. 10
1, 2, 0, 3, 0, 2, 0, 1, 1, 0, 0, 2, 0, 0, 2, 3, 0, 3, 0, 0, 0, 0, 0, 2, 3, 0, 1, 0, 0, 2, 0, 3, 0, 0, 2, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 2, 1, 1, 0, 0, 0, 3, 0, 0, 0, 0, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 2, 0, 1, 0, 0, 3, 0, 2, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 2, 0, 3, 0, 3, 0, 0, 0, 0, 2 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..65537

FORMULA

a(n) = A010873(A122111(n)).

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)};

A122111(n) = if(1==n, n, prime(bigomega(n))*A122111(A064989(n)));

A336124(n) = (A122111(n)%4);

CROSSREFS

Cf. A010873, A064989, A122111, A336120.

Sequence in context: A095704 A163496 A092241 * A256580 A213266 A182038

Adjacent sequences:  A336121 A336122 A336123 * A336125 A336126 A336127

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jul 15 2020

STATUS

approved

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Last modified February 25 12:00 EST 2021. Contains 341606 sequences. (Running on oeis4.)