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 A193163 Irregular table read by rows, in which row n lists the factorions in base n, for n >= 2. 5
 1, 2, 1, 2, 1, 2, 7, 1, 2, 49, 1, 2, 25, 26, 1, 2, 1, 2, 1, 2, 41282, 1, 2, 145, 40585, 1, 2, 26, 48, 40472, 1, 2, 1, 2, 519326767, 1, 2, 12973363226, 1, 2, 1441, 1442, 1, 2, 2615428934649, 1, 2, 40465, 43153254185213, 43153254226251, 1, 2, 1, 2, 1, 2, 1, 2 (list; graph; refs; listen; history; text; internal format)
 OFFSET 2,2 COMMENTS Because 1 and 2 are factorions in any base, these mark the start of a new row. LINKS Karl W. Heuer, Rows n = 2..39, flattened (each row starts with 1 and 2) Eric Weisstein's World of Mathematics, Factorion EXAMPLE 49 is in row 5 because 49 = 1! + 4! + 4! and is "144" in base 5. The first few rows are: 1, 2 (binary) 1, 2 (ternary) 1, 2, 7 (quartal) 1, 2, 49 (quintal) 1, 2, 25, 26 (hexal) 1, 2 (heptal) 1, 2 (octal) 1, 2, 41282 (nonal) 1, 2, 145, 40585 (decimal) 1, 2, 26, 48, 40472 (undecimal) 1, 2 (duodecimal) 1, 2, 519326767, etc. CROSSREFS Cf. A014080, A166623. Sequence in context: A215745 A059913 A083273 * A106157 A181816 A113738 Adjacent sequences:  A193160 A193161 A193162 * A193164 A193165 A193166 KEYWORD nonn,base,tabf AUTHOR Karl W. Heuer, Aug 06 2011 STATUS approved

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Last modified January 19 18:27 EST 2019. Contains 319309 sequences. (Running on oeis4.)