A278256 - OEIS

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A278256

Least number with the same prime signature as the n-th oblong number (A002378).

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

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10000

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.