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A324548 Maximal value which A324543 attains among the divisors of n. 2
0, 1, 3, 3, 7, 3, 15, 4, 9, 7, 31, 3, 63, 15, 8, 16, 127, 9, 255, 7, 21, 31, 511, 8, 21, 63, 12, 27, 1023, 8, 2047, 16, 31, 127, 20, 20, 4095, 255, 78, 32, 8191, 21, 16383, 31, 9, 511, 32767, 16, 45, 21, 127, 63, 65535, 12, 53, 27, 270, 1023, 131071, 8, 262143, 2047, 21, 72, 63, 31, 524287, 127, 511, 20, 1048575, 20, 2097151, 4095, 21 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..4473

FORMULA

a(n) = Max_{d|n} A324543(d).

a(A000040(n)) = A000225(n).

a(A001248(n)) = A068156(n) = 3*(2^n - 1).

EXAMPLE

Divisors of 161051 are [1, 11, 121, 1331, 14641, 161051]. Applying A324543 to these gives the values [0, 31, 93, 124, 496, 248]. Of these 496 is the largest, thus a(161051) = 496.

PROG

(PARI) A324548(n) = vecmax(apply(A324543, divisors(n))); \\ Needs also code from A324543.

CROSSREFS

Cf. A324543.

Sequence in context: A274845 A324048 A100587 * A249383 A187419 A099282

Adjacent sequences:  A324545 A324546 A324547 * A324549 A324550 A324551

KEYWORD

nonn

AUTHOR

Antti Karttunen, Mar 07 2019

STATUS

approved

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Last modified April 4 23:14 EDT 2020. Contains 333238 sequences. (Running on oeis4.)