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%I #8 Sep 24 2023 04:29:47
%S 3,4,9,36,25,120,105,280,441,2520,385,277200,70785,56056,585585,
%T 5045040,1446445,183783600,8729721,40646320,1322685,4655851200,
%U 37182145,1070845776,900951975,5949143200,6453758025,80313433200,215656441
%N Smallest number of the form n*k + 1 that is divisible by all the phi(n) numbers less than n and relatively prime to n.
%e a(9) = 280= 31*9 +1 is divisible by 1,2,4,5,7 and 8.
%o (PARI) for (i = 2, 50, g = 1; for (j = 2, i - 1, if (gcd(i, j) == 1, g = lcm(g, j))); print1(lift(chinese(Mod(1, i), Mod(0, g))), ", ")); \\ _David Wasserman_, Jan 03 2005
%Y Cf. A038610.
%K nonn
%O 2,1
%A _Amarnath Murthy_, Jun 11 2003
%E More terms from _David Wasserman_, Jan 03 2005
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