A358925 Numbers whose first occurrence in Stern's diatomic series (A002487) is later than that of one of their proper multiples.

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

Offset: 1

Author

Rémy Sigrist, Dec 06 2022

Keywords

• nonn

Comments

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

For the first 38 terms, k = 2.

Examples

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

Links

• Rémy Sigrist, C program
• Rémy Sigrist, C++ program
• Index entries for sequences related to Stern's sequences

Crossrefs

Cf. A002487, A020946.

Programs

C

See Links section.
(C++) See Links section.