[seqfan] Re: Just a quick (but hard?) funny sequence idea

Harvey P. Dale hpd at hpdale.org
Sat Aug 26 16:56:02 CEST 2017

	The first six terms are 3, 3, 878, 11404, 11404, and 595413.

-----Original Message-----
From: SeqFan [mailto:seqfan-bounces at list.seqfan.eu] On Behalf Of Felix Fröhlich
Sent: Saturday, August 26, 2017 6:24 AM
To: Sequence Fanatics Discussion list <seqfan at list.seqfan.eu>
Subject: [seqfan] Just a quick (but hard?) funny sequence idea

Dear Sequence Fans,

just had the idea for the following funny sequence:

Least k > 1 such that the initial n digits in the decimal expansions of Pi and Pi^k coincide, ignoring the decimal point.

a(1) = a(2) = 3, since Pi = 3.14159... and Pi^3 = 31.00627..., where first two digits (31) coincide.

What are further terms of the sequence?

Best regards
Felix Fröhlich

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