A303580 - OEIS

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A303580

List of starts of nondecreasing runs of values of the Euler totient function phi(n) (A000010(n)).

1, 6, 8, 10, 12, 14, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60, 62, 64, 66, 68, 70, 72, 74, 76, 78, 80, 82, 84, 86, 88, 90, 92, 94, 96, 98, 100, 102, 104, 108, 110, 112, 114, 116, 118, 120, 122, 124, 126, 128, 130, 132, 134, 136, 138, 140, 142, 144, 146, 148, 150, 152, 154

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Seiichi Manyama, Table of n, a(n) for n = 1..10000

PROG

(AWK) # Assume that b.txt contains a b-file for A000005

awk ' BEGIN {i = 1; print i}

{if ($2 < i) print $1; i = $2} ' b.txt >out

CROSSREFS

Cf. A000010.

A303579 gives the lengths of the successive runs.