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 A069148 Numbers n such that n*n!/A062758(n) is not an integer where A062758(n) is the product of squares of divisors of n. 1
 4, 6, 8, 10, 14, 16, 18, 20, 22, 26, 28, 34, 38, 42, 44, 46, 52, 58, 62, 66, 68, 74, 76, 78, 82, 86, 92, 94, 102, 106, 114, 116, 118, 122, 124, 134, 138, 142, 146, 148, 158, 164, 166, 172, 174, 178, 186, 188, 194, 202, 206, 212, 214, 218, 222, 226, 236, 244, 246 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS MATHEMATICA Rest[Position[Table[(n*n!)/(Times@@Divisors[n])^2, {n, 250}], _?(!IntegerQ[ #]&)]//Flatten] (* Harvey P. Dale, Apr 24 2019 *) PROG (PARI) for(n=1, 320, if((n*(n!))%(n^numdiv(n))>0, print1(n, ", "))) CROSSREFS Complement of A069149. Cf. A001563 (n*n!), A062758. Sequence in context: A316262 A075124 A067315 * A328144 A327888 A103800 Adjacent sequences:  A069145 A069146 A069147 * A069149 A069150 A069151 KEYWORD easy,nonn AUTHOR Benoit Cloitre, Apr 08 2002 STATUS approved

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Last modified January 21 10:25 EST 2022. Contains 350477 sequences. (Running on oeis4.)