A342785 Positions of words in A342753 having 1st digit 1 and last digit 1.

3, 12, 18, 27, 39, 42, 57, 60, 63, 84, 87, 90, 96, 120, 126, 129, 132, 135, 144, 174, 180, 183, 189, 192, 195, 198, 204, 216, 255, 261, 264, 270, 273, 276, 285, 288, 291, 294, 297, 306, 324, 363, 381, 384, 390, 393, 396, 399, 405, 408, 411, 414, 429, 432

Offset

1,1

Comments

Every positive integer is in exactly one of the sequences A342782, A342783, A342784, and A342785.

Links

Table of n, a(n) for n=1..54.

Example

Positions of the first 2 words in which 1st digit = 1 and last digit = 1 can be read from a list of the first 16 words in A342753: 0, 00, 1, 000, 01, 10, 0000, 001, 100, 010, 00000, 11, 0001, 0100, 1000, 0010.

Mathematica

(See A342753.)

Crossrefs

Cf. A342753, A342782, A342783, A342784, A342786.

Sequence in context: A063229 A061564 A348169 * A166038 A052637 A120623

Adjacent sequences: A342782 A342783 A342784 * A342786 A342787 A342788

Keyword

nonn,base

Author

Clark Kimberling, May 07 2021

Status

approved