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 A116174 Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 8. 8
 1143, 4382, 4943, 24941511, 25058558, 94090583, 616729341438, 638432642423, 978717194478, 994009005983, 1636200161363007, 1710661666314798, 1805005185949007, 1906479843038783, 1986790648039982, 3072104679280383 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 COMMENTS Also numbers k such that k concatenated with k+9 gives the product of two numbers which differ by 6. LINKS Table of n, a(n) for n=1..16. EXAMPLE 94090583//94090585 = 97000297 * 97000305, where // denotes concatenation. 94090583//94090592 = 97000298 * 97000304. CROSSREFS Cf. A116168, A116173, A116175, A116181, A116305. Cf. A116180, A116169, A116352. Sequence in context: A132410 A252428 A251773 * A223194 A265504 A237458 Adjacent sequences: A116171 A116172 A116173 * A116175 A116176 A116177 KEYWORD nonn,base AUTHOR Giovanni Resta, Feb 06 2006 EXTENSIONS Edited by N. J. A. Sloane, Apr 13 2007 STATUS approved

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Last modified May 21 13:44 EDT 2024. Contains 372738 sequences. (Running on oeis4.)