A053780 - OEIS

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

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A053780

Palindromes arising in A053779.

4, 434, 505, 18781, 27072, 33633, 1254521, 3360633, 5989895, 9145419, 10411401, 161101161, 390949093, 795303597, 935424539, 25127372152, 77753535777, 1997671767991, 2300809080032, 3754911194573, 6476856586746, 9825337335289

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

a(8)=3360633 coincides with A171706(3) and A171741(6) (and see a(6)=33633 here).

Also, note that A029965 ran just short of the OEIS space limitation, possibly affecting discovery.

LINKS

Table of n, a(n) for n=1..22.

P. De Geest, Palindromic Sums

C. Rivera, PrimePuzzle 89

CROSSREFS

Cf. A002808, A002113, A053779, A171706, A171741, A029965, A029966.