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 A175440 Terms in A177950 that are not in A002778. 1
 9, 33, 48, 66, 87, 99, 117, 216, 273, 288, 297, 333, 484, 513, 528, 666, 783, 819, 999, 1323, 1331, 1452, 1474, 1602, 2178, 2622, 3333, 4884, 4961, 6666, 7161, 7575, 9999, 10989, 11979, 12969, 14652, 14733, 15972, 20402, 21021, 21534, 21648, 23331 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Terms n in A177950 such that n^2 is palindrome are also in A002778. This sequence consists of numbers (more interesting?) that are in A177950 but not in A002778. Notice that most terms are multiples of 3, while some are not: 484, 1331, 1474, 4961, 20402, 48884, 122221, 188887, 217822, 467126, 477773, 484484, 506506, 525503, 718189, 808808, 1461262, 1729408, 2004002, 2317315, 2920819, 4840484. LINKS Table of n, a(n) for n=1..44. Zak Seidov, A175440 CROSSREFS Cf. A002778 Numbers whose square is a palindrome, A177950 Numbers n dividing n^2 with digits reversed. Sequence in context: A145849 A111045 A020226 * A280405 A111351 A065064 Adjacent sequences: A175437 A175438 A175439 * A175441 A175442 A175443 KEYWORD base,nonn AUTHOR Zak Seidov, May 16 2010 STATUS approved

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Last modified September 25 20:01 EDT 2023. Contains 365649 sequences. (Running on oeis4.)