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A303578 List of starts of nondecreasing runs of values of d(n) (the divisor function A000005(n)). 3
1, 5, 7, 9, 11, 13, 17, 19, 21, 23, 25, 29, 31, 33, 37, 41, 43, 46, 47, 49, 51, 53, 55, 57, 59, 61, 65, 67, 69, 71, 73, 77, 79, 81, 82, 83, 85, 89, 91, 93, 97, 101, 103, 106, 107, 109, 111, 113, 115, 118, 121, 125, 127, 129, 131, 133, 137, 139, 141, 145, 149, 151, 153, 155, 157, 161, 163, 166, 167, 169, 171, 173, 175 (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. A000005.

A303577 gives the lengths of the successive runs.

A284597(m) is the smallest number that starts a run of length m.

Sequence in context: A035034 A065155 A230203 * A282057 A088502 A081001

Adjacent sequences:  A303575 A303576 A303577 * A303579 A303580 A303581

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Apr 29 2018

STATUS

approved

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Last modified February 26 17:19 EST 2020. Contains 332293 sequences. (Running on oeis4.)