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A366261
The least number with the same prime signature as A366260, where A366260 is Doudna sequence permuted by May code.
5
1, 2, 4, 2, 4, 2, 6, 8, 16, 2, 6, 12, 6, 8, 4, 12, 24, 2, 6, 12, 6, 12, 6, 30, 24, 32, 4, 12, 36, 12, 16, 8, 16, 2, 6, 12, 6, 12, 6, 30, 24, 48, 6, 30, 60, 30, 24, 12, 60, 48, 4, 12, 36, 12, 36, 12, 60, 72, 64, 8, 24, 72, 24, 32, 64, 2, 6, 12, 6, 12, 6, 30, 24, 48, 6, 30, 60, 30, 24, 12, 60, 120, 6, 30, 60, 30, 60
OFFSET
0,2
FORMULA
a(n) = A046523(A366260(n)).
a(n) = A278222(A303767(n)).
A001222(a(n)) = A366254(n).
PROG
(PARI)
A046523(n) = { my(f=vecsort(factor(n)[, 2], , 4), p); prod(i=1, #f,
A366261(n) = A046523(A366260(n)); \\ Needs also the program given in A366260.
CROSSREFS
Cf. A005940, A046523, A303767, A366260, A366262 (rgs-transform).
Cf. also A278219, A278222.
Sequence in context: A037201 A128886 A031883 * A375200 A086152 A194577
KEYWORD
nonn
AUTHOR
Antti Karttunen, Oct 05 2023
STATUS
approved