The OEIS is supported by the many generous donors to the OEIS Foundation.

Palindromes k such that the sum of the first palindromes up to k is a palindrome.

2

`%I #15 Aug 11 2024 14:41:31
`

`%S 1,2,3,33,77,383,21512
`

`%N Palindromes k such that the sum of the first palindromes up to k is a palindrome.
`

`%H P. De Geest, <a href="https://www.worldofnumbers.com/index.html">World!Of Numbers</a>
`

`%F a(n) = A002113(1+A046486(n)). - _R. J. Mathar_, Sep 09 2015
`

`%e a(n)=77 so 1+2+3+4+5+6+7+8+9+11+22+33+44+55+66+77 = 353.
`

`%Y Cf. A002113, A046486, A046488.
`

`%K nonn,hard,base
`

`%O 1,2
`

`%A _Patrick De Geest_, Sep 15 1998
`

`%E Offset changed to 1 by _R. J. Mathar_, Sep 09 2015
`