[seqfan] A039686 vs A147608
David Wilson
davidwwilson at comcast.net
Thu Nov 22 05:40:31 CET 2012
Both A039686 and A147608 purport to be squares which are the
concatenation of nonzero squares. However, A147608 has additional
values, the first being a(10) = 9025.
If 9025 is interpretable as the concatenation of two nonzero squares,
these would have to be 9 and 025. This is not how we normally
concatenate decimal numerals with values 9 and 25. I propose either kill
A147608 as a corrupt duplicate of A039686, or amend its description and
include the example {9025,9,025} to highlight the difference between
A039686 and A147608.
I have submitted a 1000-term b-file for A039686, and if A147608 is
retained, I could submit a like b-file.
More information about the SeqFan
mailing list