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A278256
Least number with the same prime signature as the n-th oblong number (A002378).
3
2, 6, 12, 12, 30, 30, 24, 72, 60, 30, 60, 60, 30, 210, 240, 48, 60, 60, 60, 420, 210, 30, 120, 360, 60, 120, 360, 60, 210, 210, 96, 480, 210, 210, 1260, 180, 30, 210, 840, 120, 210, 210, 60, 1260, 420, 30, 240, 720, 180, 420, 420, 60, 120, 840, 840, 840, 210, 30, 420, 420, 30, 420, 2880, 960, 2310, 210, 60, 420, 2310, 210, 360, 360, 30, 420, 1260, 420, 2310
OFFSET
1,1
LINKS
FORMULA
a(n) = A046523(A002378(n)).
a(n) = A278259((2*n) + 1).
PROG
(Scheme) (define (A278256 n) (A046523 (A002378 n)))
CROSSREFS
Odd bisection of A278259.
Cf. also A278253.
Sequence in context: A092427 A058198 A096075 * A066791 A062723 A152667
KEYWORD
nonn
AUTHOR
Antti Karttunen, Nov 22 2016
STATUS
approved