A232191 A walk based on the digits of Pi (A000796).

3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6, 5, 4, 3, 4, 5, 6, 7, 8, 9, 8, 7, 8, 9, 8, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 5, 6, 5, 4, 3, 2, 3, 4, 5, 6, 5, 4, 3, 3, 4, 5, 6, 7, 8, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6

Offset

1,1

Comments

Pi = 3.14159265358979323846....

Between 3 and 1 we place 2.

Between 1 and 4 we place 2 and 3.

Between 4 and 1 we place 3 and 2.

Between 1 and 5 we place 2, 3, and 4.

Between 5 and 9 we place 6, 7, and 8.

Between 9 and 2 we place 8, 7, 6, 5, 4 and 3.

Between 2 and 6 we place 3, 4 and 5.

Between 6 and 5 we place nothing.

Between 5 and 3 we place 4, and so on.

This gives:

3, 2, 1, 2, 3, 4, 3, 2, 1, 2, 3, 4, 5, 6, 7, 8, 9, 8, 7, 6, 5, 4, 3, 2, 3, 4, 5, 6, 5, 4, 3, 4, 5, ...

This could be called a walk (or promenade) on the digits of Pi.

Links

Table of n, a(n) for n=1..87.

Crossrefs

Cf. A000796

Sequence in context: A324782 A256427 A120441 * A183041 A136560 A105847

Adjacent sequences: A232188 A232189 A232190 * A232192 A232193 A232194

Keyword

nonn,easy,base

Author

Philippe Deléham, Nov 20 2013

Status

approved