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

164, 195, 265, 498, 1664, 1995, 2665, 4847, 4998, 6545, 7424, 16664, 19995, 21775, 24996, 26665, 43243, 49998, 86486, 148480, 166664, 175150, 199995, 217775, 249996, 266665, 368180, 484847, 499998, 654545, 742424, 1001001, 1081075, 1216216, 1249992, 1297290, 1451850, 1471468, 1481477

Offset: 1

Author

Derek Orr, Jul 20 2014

Keywords

• nonn
• base

Comments

This sequence does not contain any repdigits, unlike A245385.

Examples

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

Crossrefs

Cf. A245385, A245364.

Cf. A262743 (predestined numbers).

Programs

Python

for n in range(1,10**7):
  s = str(n)
  count = 0
  for i in range(1,len(s)):
    if i != len(s) - i:
      if int(s[:i]) != int(s[len(s)-i:]):
        num = int(s[:i])*int(s[i:])
        if num != 0:
          if num == int(s[:len(s)-i])*int(s[len(s)-i:]):
            count += 1
            break
  if count > 0:
    print(n,end=', ')