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A335116 Where records occur in A304480. 3
1, 2, 3, 5, 7, 13, 25, 31, 37, 61, 73, 109, 121, 145, 181, 241, 361, 421, 541, 721, 841, 1009, 1081, 1201, 1261, 1621, 1681, 2017, 2161, 2521, 3361, 3781, 5041, 6481, 7561, 8401, 10081, 12601, 15121, 25201, 30241, 42841, 45361, 55441, 60481, 75601, 85681, 100801, 110881, 128521, 131041 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

a(n) is odd for n > 2.

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..90

Project Euler, Problem 533 - Minimum values of the Carmichael function

Wikipedia, Carmichael function

CROSSREFS

Cf. A002322, A304480, A335117 (records).

Sequence in context: A327591 A124147 A227627 * A135372 A037021 A114741

Adjacent sequences:  A335113 A335114 A335115 * A335117 A335118 A335119

KEYWORD

nonn

AUTHOR

Seiichi Manyama, May 24 2020

STATUS

approved

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Last modified April 19 21:51 EDT 2021. Contains 343117 sequences. (Running on oeis4.)