A137898 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 of the term at position n+a(n)+1.

1, 5, 3, 4, 5, 21, 15, 17, 9, 21, 11, 12, 13, 14, 15, 16, 17, 37, 19, 20, 21, 68, 23, 75, 51, 81, 55, 57, 29, 93, 63, 65, 33, 69, 35, 36, 37, 77, 39, 81, 41, 85, 43, 44, 45, 93, 47, 48

Offset: 1

Author

Ctibor O. Zizka, Apr 30 2008

Keywords

• easy
• nonn

Crossrefs

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

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 of the term at position n+a(n)+1.

Extensions

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