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A245386 Numbers in A245385 where P, Q, R, and S are all distinct. 2

%I #14 Oct 09 2015 17:53:19

%S 164,195,265,498,1664,1995,2665,4847,4998,6545,7424,16664,19995,21775,

%T 24996,26665,43243,49998,86486,148480,166664,175150,199995,217775,

%U 249996,266665,368180,484847,499998,654545,742424,1001001,1081075,1216216,1249992,1297290,1451850,1471468,1481477

%N Numbers in A245385 where P, Q, R, and S are all distinct.

%C This sequence does not contain any repdigits, unlike A245385.

%e 4*84847 = 48484*7 = 339388. Thus 484847 is a member of this sequence.

%o (Python)

%o for n in range(1,10**7):

%o ..s = str(n)

%o ..count = 0

%o ..for i in range(1,len(s)):

%o ....if i != len(s) - i:

%o ......if int(s[:i]) != int(s[len(s)-i:]):

%o ........num = int(s[:i])*int(s[i:])

%o ........if num != 0:

%o ..........if num == int(s[:len(s)-i])*int(s[len(s)-i:]):

%o ............count += 1

%o ............break

%o ..if count > 0:

%o ....print(n,end=', ')

%Y Cf. A245385, A245364.

%Y Cf. A262743 (predestined numbers).

%K nonn,base

%O 1,1

%A _Derek Orr_, Jul 20 2014

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Last modified April 26 21:53 EDT 2024. Contains 372004 sequences. (Running on oeis4.)