A069509 a(1) = 8; a(n) = smallest palindromic number of the form k*a(n-1) + 1 with k > 1.

8, 33, 232, 929, 18581, 29933992, 108309414903801, 5352871641494664941461782535

Offset

1,1

Comments

Multiplier k for a(8) is larger than 1000000000. - Patrick De Geest

The multipliers (k) are 4, 7, 4, 20, 1611, 3618275, 49422034513334. - Lars Blomberg, Sep 24 2011

Links

Table of n, a(n) for n=1..8.

Crossrefs

Cf. A069505, A069506, A069507, A069508, A069510.

Sequence in context: A001407 A005398 A240044 * A204191 A041118 A308879

Adjacent sequences: A069506 A069507 A069508 * A069510 A069511 A069512

Keyword

nonn,base,more

Author

Amarnath Murthy, Mar 30 2002

Extensions

a(6) from Antonio G. Astudillo (afg_astudillo(AT)lycos.com), Apr 07 2003

a(7) from Patrick De Geest, Jun 11 2003

a(8) added and offset changed to 1 by Lars Blomberg, Sep 24 2011

Status

approved