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Jun 12, 2011 at 1:38 comment added Kevin O'Bryant Sometimes a given sequence "naturally" starts with a different index, so leaving off the first few terms increases the likelihood of finding the right sequence in the encyclopedia.
Jun 12, 2011 at 1:34 history edited Kevin O'Bryant CC BY-SA 3.0
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Jun 11, 2011 at 7:58 comment added gowers Actually, I've just looked it up (though your second link takes me to the same page as the first) and I see that the answer is that even "unnatural" sequences such as those obtained by reading a triangle along its rows are included in OEIS, and that subsequences are recognised too. That makes it a more useful resource than I had realized.
Jun 11, 2011 at 7:55 comment added gowers Out of interest, what made you think that that sequence would yield something? And why not e.g. 1,1,1,1,3,2,1,7,12,6,1,15?
Nov 9, 2010 at 17:02 vote accept David Loeffler
Nov 9, 2010 at 16:42 comment added Martin Rubey You beat me :-) I just wanted to comment that the generating function above is a simple transformation of the generating function for Eulerian polynomials...
Nov 9, 2010 at 16:36 history answered Kevin O'Bryant CC BY-SA 2.5