A393266 Totient numbers (A002202) k at which x/y reaches a record, where x (A006511) is the largest integer such that phi(x) = k and y (A002181) is the smallest integer such that phi(y) = k.

1, 4, 6, 12, 16, 40, 72, 96, 192, 240, 336, 432, 480, 576, 1152, 3360, 4800, 5280, 5760, 7680, 15360, 17280, 23040, 57600, 63360, 103680, 184320, 737280, 921600, 1198080, 1658880, 4976640, 6635520, 16588800, 28200960, 33177600, 36495360, 72990720

Offset

1,2

Links

Jud McCranie, Table of n, a(n) for n = 1..58

Crossrefs

Cf. A002181, A002202, A005867, A006511, A393265.

Sequence in context: A139056 A152519 A240507 * A022802 A301166 A310599

Adjacent sequences: A393263 A393264 A393265 * A393267 A393268 A393269

Keyword

nonn

Author

Jud McCranie, Feb 07 2026

Status

approved