A358925 - OEIS

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A358925

Numbers whose first occurrence in Stern's diatomic series (A002487) is later than that of one of their proper multiples.

1

54, 2052, 4060, 23184, 54425, 109854, 121392, 126866, 249180, 317810, 323284, 330612, 363552, 384834, 416020, 476528, 512937, 537402, 537988, 544178, 558085, 601492, 739033, 743862, 785888, 832039, 930249, 982860, 984544, 1201692, 1203954, 1204276, 1207300

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

OFFSET

1,1

COMMENTS

Equivalently, numbers m such that A020946(m) > A020946(m*k) for some k > 1.

For the first 38 terms, k = 2.

LINKS

Table of n, a(n) for n=1..33.

Rémy Sigrist, C program

Rémy Sigrist, C++ program

Index entries for sequences related to Stern's sequences

EXAMPLE

A020946(54) = 1275, but A020946(2*54) = 1173 is smaller, so 54 belongs to this sequence.

PROG

(C) See Links section.

(C++) See Links section.

CROSSREFS

Cf. A002487, A020946.

Sequence in context: A062144 A262112 A076009 * A003755 A324953 A174445

Adjacent sequences: A358922 A358923 A358924 * A358926 A358927 A358928

KEYWORD

nonn

AUTHOR

Rémy Sigrist, Dec 06 2022

STATUS

approved