Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 4500 articles have referenced us, often saying "we would not have discovered this result without the OEIS".
Table of n, a(n) for n=1..74.
A029954 (base 7 palindromes)
Sequence in context: A173526 A245342 A203580 * A082120 A104148 A245344
Adjacent sequences: A043263 A043264 A043265 * A043267 A043268 A043269