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A328492
First differences of A240510 (Numbers whose "reverse and add" process becomes palindromic at 8813200023188).
2
9, 89, 99, 99, 198, 99, 99, 88, 11, 88, 329, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90, 90, 90, 90, 369, 90, 90, 90, 90
OFFSET
1,1
COMMENTS
Additional patterns can be seen in the bfile.
LINKS
MATHEMATICA
limit = 10^3; (* Assumes that there is no palindrome if none is found before "limit" iterations *)
Differences@Select[Range[0, 50000], (np = #; i = 0;
While[ ! PalindromeQ[np] && i < limit,
np = np + IntegerReverse[np]; i++];
np == 8813200023188) &] (* Robert Price, Oct 16 2019 *)
CROSSREFS
Sequence in context: A279166 A147884 A178369 * A306686 A055410 A214616
KEYWORD
base,nonn,fini
AUTHOR
Robert Price, Oct 16 2019
STATUS
approved