Non-mathematical sequences

franktaw at netscape.net franktaw at netscape.net
Thu Sep 28 00:46:43 CEST 2006


For what it's worth, herewith a list of the sequences I found that are 
not mathematical.  The rule I followed is that if a sequence has a 
simple mathematical definition, it is not included here, even if the 
name is non-mathematical.  Thus, I did not include things like A000600, 
"Number of tertiary alcohols (alkanols or alkyl alcohols C_n H_{2n+1} 
OH) with n carbon atoms.", since this is easily recast into 
graph-theoretic terms.  I did include, for example, A080915, "Number of 
electrons in outermost electron shell (valence electrons) in chemical 
element number n.", which I believe has a fairly simple mathematical 
structure, but it is not clear (at least to me) that that structure 
continues indefinitely.

A000053, A000054, A001049, A001356, A001491, A002651, A003671-A003673, 
A003675-A003678, A003786, A005600, A005601, A006833, A006834, A007656, 
A007826, A008684-A008686, A008744-A008746, A009734, A011554, A011763, 
A011765, A011766, A011770, A011771, A027440, A027884, A027885, A029925, 
A029915-A029928, A031139, A033171-A033174, A038674, A051121, A053401, 
A053402, A053406, A054245, A055069, A056958, A056997-A056999, 
A057347-A057350, A057430, A057720, A058317, A058318, A060512, A060513, 
A060958, A061251, A063516, A064172, A064265-A064267, A064296, 
A070058-A070060, A070062-A070064, A070273, A072171, A072550, A072915, 
A073304, A073305, A078300-A078302, A080915, A080916, A081098-A081101, 
A081244, A081245, A081799-A081803, A081813-A081826, A084427, A084989, 
A085735, A087778, A090232, A090651, A091786, A091978, A093907, A097105, 
A098476, A100000, A100017, A100487, A100488, A101111, A101284-A101287, 
A101312, A101358, A101647-A101649, A101944, A104019, A104034, A104101, 
A106605, A106806, A107273-A107276, A109553, A109618, A109952, A111167, 
A113529, A114062, A115100, A115417, A116369, A116386, A116448, A117635, 
A118652, A118661, A118662, A119406, A120441, A121818, A122559, A123456

This list is doubtless incomplete; I certainly couldn't look at every 
single sequence.  It was compiled by searching for certain words, and 
examining the results.

Franklin T. Adams-Watters

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