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 Next Numbers Please #9 (Posted on 2017-08-23)
What are the next four numbers in the sequence 1, 2, 3, 4, 5, 3, 7, 4, 6, 5, 11, 4, __, __, __, __?

When does the number 12 first appear in the sequence?

 Submitted by Brian Smith Rating: 3.6667 (3 votes) Solution: (Hide) The next four numbers are 13, 7, 5, 8. These are the Kempner numbers. OEIS A002034 The number 12 first appears as the 243rd term. OEIS A046021

 Subject Author Date re(5): When 12 appears Charlie 2017-08-29 09:54:43 re(4): When 12 appears Charlie 2017-08-29 09:47:19 re(4): When 12 appears Jer 2017-08-28 15:20:21 re(3): When 12 appears Steve Herman 2017-08-27 19:21:04 re(2): When 12 appears Jer 2017-08-27 18:19:58 re: When 12 appears Steve Herman 2017-08-23 20:23:14 When 12 appears Math Man 2017-08-23 19:18:24 NEXT 4 Ady TZIDON 2017-08-23 13:14:12 Part 2 answer only (spoiler) Steve Herman 2017-08-23 11:43:39

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