A391580 Numbers k for which A391571(k) > k.

3, 6, 7, 11, 12, 13, 14, 15, 19, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 35, 38, 39, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 67, 70, 71, 75, 76, 77, 78, 79, 83, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111

Offset

1,1

Comments

This is a subsequence of A004780, from which this differs first at a(940) = 1118, while A004780(940) = 1117, a value not in this sequence. See A391581.

Links

Antti Karttunen, Table of n, a(n) for n = 1..10000

Index entries for sequences related to binary expansion of n.

Index entries for sequences related to carryless arithmetic.

Prog

(PARI) is_A391580(k) = (A391571(k)>k);

Crossrefs

Cf. A391571.

Setwise difference A004780 \ A391581.

Sequence in context: A028754 A028795 A004780 * A359266 A292046 A051146

Adjacent sequences: A391577 A391578 A391579 * A391581 A391582 A391583

Keyword

nonn,base

Author

Antti Karttunen, Dec 17 2025

Status

approved