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 A268278 Numbers n such that both n and n^2 contain "123" as a substring. 3
 11123, 12394, 35123, 50123, 98123, 111123, 111230, 111231, 111232, 111233, 111234, 111235, 111236, 111237, 111238, 111239, 112394, 123305, 123463, 123726, 123743, 123940, 212394, 312394, 335123, 351123, 351230 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS Zak Seidov, Table of n, a(n) for n = 1..3000 EXAMPLE 11_123_^2 = 123_721129. CROSSREFS Subsequence of A178314. Cf. A175464. Sequence in context: A076164 A234661 A261778 * A073038 A107650 A291705 Adjacent sequences: A268275 A268276 A268277 * A268279 A268280 A268281 KEYWORD nonn,base AUTHOR Zak Seidov, Jan 29 2016 STATUS approved

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Last modified July 17 22:17 EDT 2024. Contains 374377 sequences. (Running on oeis4.)