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A378657
Numbers that are primitive Zumkeller, but not primitive non-deficient.
4
8228, 12716, 17204, 21692, 23188, 27676, 30668, 32164, 35156, 39644, 44132, 45628, 50116, 53108, 54604, 59092, 62084, 66572, 72556, 75548, 77044, 80036, 81532, 84524, 94996, 97988, 102476, 103972, 111452, 112948, 117436, 121924, 124916, 129404, 133892, 135388, 142868, 144364, 147356, 148852, 157828, 166804, 169796
OFFSET
1,1
LINKS
FORMULA
{k such that A378537(k) = 1 and A341619(k) = 0}.
PROG
(PARI) is_A378657(n) = (A378537(n) && !A341619(n));
CROSSREFS
Sequence A180332 without any terms of A006039.
Setwise difference A378538 \ A378656.
Sequence in context: A031844 A210008 A168632 * A374694 A230043 A045056
KEYWORD
nonn,new
AUTHOR
Antti Karttunen, Dec 05 2024
STATUS
approved