A137838 - OEIS

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A137838

Limiting sequence when we start with the positive integers (A000027) and delete in step n >= 1 the first digit in the term at position n + a(n).

1, 3, 4, 5, 7, 8, 10, 11, 2, 13, 4, 5, 16, 7, 8, 19, 21, 2, 23, 4, 5, 6, 7, 8, 29, 0

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..26.

EXAMPLE

First few steps are:

1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,...

n = 1; delete the first digit in the term at position 1+a(1) = 2: 2;

1,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,...

n = 2; delete the first digit in the term at position 2+a(2) = 5: 6;

1,3,4,5,7,8,9,10,11,12,13,14,15,16,17,18,19,20,...

n = 3; delete the first digit in the term at position 3+a(3) = 7: 9;

1,3,4,5,7,8,10,11,12,13,14,15,16,17,18,19,20,...

n = 4; delete the first digit in the term at position 4+a(4) = 9: 1;

1,3,4,5,7,8,10,11,2,13,14,15,16,17,18,19,20,...

n = 5; delete the first digit in the term at position 5+a(5) = 12: 1;

1,3,4,5,7,8,10,11,2,13,14,5,16,17,18,19,20,...

n = 6; delete the first digit in the term at position 6+a(6) = 14: 1;

1,3,4,5,7,8,10,11,2,13,14,5,16,7,18,19,20,...

CROSSREFS

Cf. A137292, A136120, A136119, A136259, A136272, A137319, A137417, A137418.

Sequence in context: A035059 A353980 A137832 * A352486 A367107 A298108

Adjacent sequences: A137835 A137836 A137837 * A137839 A137840 A137841

KEYWORD

easy,nonn,base

AUTHOR

Ctibor O. Zizka, Apr 29 2008

STATUS

approved