A394636 Start of exactly two even numbers that are totient numbers (A002202).

64, 70, 148, 190, 238, 250, 280, 310, 366, 430, 490, 544, 568, 598, 630, 640, 646, 682, 736, 742, 784, 820, 826, 904, 910, 918, 970, 1030, 1038, 1048, 1060, 1102, 1150, 1160, 1210, 1222, 1258, 1326, 1398, 1450, 1456, 1470, 1498, 1510, 1520, 1528, 1558, 1582

Offset

1,1

Comments

A subsequence of A333019.

Links

Table of n, a(n) for n=1..48.

Example

64 and 66 are totient numbers but 62 and 68 are not, so 64 is in the sequence.

Crossrefs

Cf. A002202, A333019, A393544, A394635, A394637, A394638, A394639, A394640.

Sequence in context: A223590 A070931 A095533 * A044864 A162528 A057371

Adjacent sequences: A394632 A394633 A394635 * A394637 A394638 A394639

Keyword

nonn

Author

Jud McCranie, Mar 28 2026

Status

approved