[seqfan] A265182
Lars Blomberg
lars.blomberg at visit.se
Sat Dec 5 10:02:59 CET 2015
Hello,
Attempting to reproduce A265182, I get a rather different result:
OEIS: 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 5, 3, 3, 3, 3, 3, 3, 3, 0, 5, 0, 0,
1, 0, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 0, 0, 0, 1, 0, 5
Mine: 1, 0, 0, 0, 0, 0, 0, 0, 0, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 0, 5, 0, 0,
1, 1, 0, 0, 0, 0, 0, 5, 0, 0, 0, 0, 1, 0, 0, 1, 0, 5
For n=12 the substrings are 1,2,12 and the products 1*1=1, 1*2=2, 2*1=2,
1*12=12, 12*1=12.
And similarly for n=13: substrings 1,3,13, products 1*1=1, 1*3=3, 3*1=3n
1*13=13, 13*1=13.
So I find a(13)=5, not 3.
And for n=25: substrings 2,5,25, product 5*5=25.
So I find a(25)=1, not 0.
Similar situation for n=36.
Am I missing something here?
/Lars B
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