A259433 Irregular table read by rows: suppose n has d decimal digits; then T(n,j) for 1 <= j <= d is the number obtained by discarding the d-j least significant digits of n.

1, 2, 3, 4, 5, 6, 7, 8, 9, 1, 10, 1, 11, 1, 12, 1, 13, 1, 14, 1, 15, 1, 16, 1, 17, 1, 18, 1, 19, 2, 20, 2, 21, 2, 22, 2, 23, 2, 24, 2, 25, 2, 26, 2, 27, 2, 28, 2, 29, 3, 30, 3, 31, 3, 32, 3, 33, 3, 34, 3, 35, 3, 36, 3, 37, 3, 38, 3, 39, 4, 40, 4, 41, 4, 42

Offset

1,2

Links

Table of n, a(n) for n=1..75.

Matematico Fresnillense, Formulas para extraer digitos de un numero natural permutando

Example

Table begins:
1;
2;
3;
4;
5;
6;
7;
8;
9;
1, 10;
1, 11;
1, 12;
...
1, 10, 100;
1, 10, 101;
...

Mathematica

Flatten[Table[
  FromDigits[Take[IntegerDigits[r], j]], {r, 150}, {j,
Length[IntegerDigits[r]]}]] (* Kellen Myers, Aug 16 2015 *)

Crossrefs

Cf. A259434.

Sequence in context: A052500 A355632 A179933 * A344487 A047813 A084051

Adjacent sequences: A259430 A259431 A259432 * A259434 A259435 A259436

Keyword

nonn,base,tabf

Author

José de Jesús Camacho Medina, Jun 26 2015

Status

approved