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A278497 a(n) = Least number with the prime signature of A276573(n). 5
2, 6, 8, 2, 6, 16, 12, 6, 24, 8, 30, 32, 6, 6, 24, 2, 12, 48, 6, 2, 24, 2, 12, 64, 2, 30, 72, 12, 30, 48, 2, 6, 24, 60, 6, 96, 12, 30, 30, 72, 48, 6, 12, 120, 6, 60, 128, 2, 6, 24, 2, 6, 144, 12, 2, 24, 6, 6, 96, 48, 30, 120, 12, 2, 48, 2, 6, 30, 24, 192, 30, 60, 72, 6, 12, 210, 6, 216, 6, 6, 96, 2, 30, 2, 12, 240, 32, 12, 24, 2, 30, 256, 6, 12, 120, 6, 120 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..10028

FORMULA

a(n) = A046523(A276573(n)).

For all n >= 1, a(A260733(1+n)) = A278160(n).

PROG

(Scheme) (define (A278497 n) (A046523 (A276573 n)))

CROSSREFS

Cf. A002828, A046523, A260733, A276573, A278160, A278498, A278499.

Cf. A277014 (gives the indices of squares).

Cf. also A278232.

Sequence in context: A040164 A086353 A019786 * A067067 A119279 A327617

Adjacent sequences:  A278494 A278495 A278496 * A278498 A278499 A278500

KEYWORD

nonn

AUTHOR

Antti Karttunen, Nov 25 2016

STATUS

approved

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Last modified April 18 04:49 EDT 2021. Contains 343072 sequences. (Running on oeis4.)