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A323167 a(n) = A294898(A122111(n)). 4
0, 0, 0, 0, 0, -2, 0, 2, 3, -6, 0, 0, 0, -14, -5, 3, 0, 2, 0, -4, -21, -30, 0, 1, 10, -62, 16, -12, 0, -16, 0, 7, -53, -126, -16, 7, 0, -254, -117, -3, 0, -52, 0, -28, 4, -510, 0, 5, 38, 8, -245, -60, 0, 19, -68, -11, -501, -1022, 0, -15, 0, -2046, -20, 9, -172, -124, 0, -124, -1013, -58, 0, 16, 0, -4094, 22, -252, -42, -268, 0, 1, 38 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,6
LINKS
FORMULA
a(n) = A294898(A122111(n)).
a(n) = A323174(n) - A322867(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)));
A005187(n) = { my(s=n); while(n>>=1, s+=n); s; };
A294898(n) = (A005187(n)-sigma(n));
\\ Or alternatively as:
A322867(n) = hammingweight(A122111(n));
A323174(n) = { my(k=A122111(n)); ((2*k)-sigma(k)); }
A323167(n) = (A323174(n) - A322867(n));
CROSSREFS
Cf. also A295296, A323248.
Sequence in context: A059235 A261216 A308107 * A361651 A222753 A274568
KEYWORD
sign
AUTHOR
Antti Karttunen, Jan 10 2019
STATUS
approved

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Last modified April 24 14:54 EDT 2024. Contains 371960 sequences. (Running on oeis4.)