A171421 Euler totient function of the n-th single or isolated number.

1, 2, 2, 4, 6, 22, 8, 36, 12, 46, 52, 16, 66, 24, 78, 82, 88, 96, 32, 36, 112, 126, 130, 44, 40, 156, 162, 166, 172, 48, 64, 60, 210, 222, 72, 232, 64, 250, 256, 262, 72, 276, 92, 292, 306, 96, 316, 330, 336, 112, 352, 358, 366, 372, 378, 382, 388, 396, 400, 408

Offset: 1

Author

Juri-Stepan Gerasimov, Dec 08 2009

Keywords

• nonn
• less

Links

• Amiram Eldar, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A000010, A167706, A168543.

Formula

a(n) = A000010(A167706(n)).

Extensions

More terms from Amiram Eldar, Feb 29 2020