1,1

The first 15 terms are palindromic.

Table of n, a(n) for n=1..45.

1471 is a term since the two digits 1 are separated by the substring 47.

Prime 277 is not a term since the only repeated digits (77) are grouped.

Cf. A052085, A052081, A052082, A052083, A052084.

Sequence in context: A060916 A075793 A319049 * A154270 A056730 A077798

Adjacent sequences: A052083 A052084 A052085 * A052087 A052088 A052089

nonn,base

Patrick De Geest, Jan 15 2000

Offset changed to 1 by Jon E. Schoenfield, Oct 17 2019

approved