A137901 Limiting sequence when we start with positive integers (A000027) and at step n >= 1 add to the term at position n + a(n) the value 1.

1, 3, 3, 4, 6, 7, 7, 9, 9, 10, 12, 12, 14, 15, 15, 16, 18, 19, 19, 21, 21, 22, 24, 25, 25, 26, 28, 28, 30, 31, 31, 33, 33, 34, 36, 36, 38, 39, 39, 40, 42, 43, 43, 45, 45, 46, 48, 48, 50, 51, 51, 53, 53, 54, 56, 57, 57, 58, 60, 60, 62, 63, 63, 64, 66, 67, 67, 69, 69, 70

Offset

1,2

Links

Table of n, a(n) for n=1..70.

Formula

Limiting sequence when we start with positive integers (A000027) and at step n >= 1 add to the term at position n + a(n) the value 1.

Prog

(PARI) lista(nn) = my(va = [1..nn]); for (n=1, nn, my(m = n+va[n]); if (m <= nn, va[m]++)); va; \\ Michel Marcus, Oct 29 2022

Crossrefs

Cf. A000027, A136119, A137319, A137417, A137418, A136259, A136272.

Sequence in context: A098238 A088651 A161019 * A138095 A023837 A240115

Adjacent sequences: A137898 A137899 A137900 * A137902 A137903 A137904

Keyword

easy,nonn

Author

Ctibor O. Zizka, Apr 30 2008

Extensions

Entries corrected and extended by Paolo P. Lava, Mar 10 2009

More terms from Michel Marcus, Oct 29 2022

Status

approved