A344161 Numbers k such that the k-th word in A342910 starts with 1 and ends with 1.

2, 8, 14, 23, 26, 38, 41, 44, 59, 65, 68, 71, 80, 92, 101, 104, 110, 116, 122, 125, 134, 140, 155, 158, 167, 176, 179, 185, 191, 197, 203, 206, 212, 215, 236, 239, 242, 254, 266, 272, 278, 281, 290, 299, 305, 308, 311, 314, 320, 326, 332, 350, 356, 362, 365

Offset

1,1

Comments

The sequences A344158-A344161 partition the positive integers. See A342910 for a guide to related sequences.

Links

Table of n, a(n) for n=1..55.

Example

The first twenty words w(n): 0, 1, 00, 01, 10, 000, 001, 11, 010, 0000, 100, 0001, 011, 101, 0010, 00000, 110, 0100, 00001, 1000; so a(1) = 2, a(2) = 8.

Mathematica

(See A342910.)

Crossrefs

Cf. A342910, A344158, A344159, A344160.

Sequence in context: A211873 A248057 A121055 * A107072 A120413 A161156

Adjacent sequences: A344158 A344159 A344160 * A344162 A344163 A344164

Keyword

nonn,base

Author

Clark Kimberling, Jun 01 2021

Status

approved