A175426 Starting values for which iteration of the map x->A175420(x) never reaches a single-digit value.

25, 26, 35, 36, 125, 126, 135, 136, 215, 216, 315, 316, 1125, 1126, 1135, 1136, 1215, 1216, 1315, 1316

Offset

1,1

Comments

Arguments m such that A175424(m) = -1. Complement of A175427.

Links

Table of n, a(n) for n=1..20.

Example

26 is in the sequence because starting with 26 the iterations enter a cycle of 2- and 3-digit numbers: 6^2 = 36, 6^3 = 216, (6^1)^2 = 36, 6^3 = 216, (6^1)^2 = 36, ...

Crossrefs

Cf. A175419, A175420, A175421, A175422, A175423, A175424, A175425, A175427.

Sequence in context: A111168 A349865 A195331 * A045567 A141278 A022395

Adjacent sequences: A175423 A175424 A175425 * A175427 A175428 A175429

Keyword

nonn,base,more

Author

Jaroslav Krizek, May 09 2010

Status

approved