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N-numbers N0001 to N2372 were not originally used in A Handbook of Integer Sequences (it used 1 to 2372 instead)

A Handbook of Integer Sequences contains 2372 sequences in lexicographic order which are assigned numbers from 1 to 2372.
The The Encyclopedia of Integer Sequences includes the references to the corresponding sequences (which may differ in their few initial terms) in A Handbook of Integer Sequences as N-numbers from N0001 to N2372 (instead of 1 to 2372).

I'm pretty sure I've seen 1 to 2372 used in A Handbook of Integer Sequences when I checked at the library. — Daniel Forgues 05:27, 21 July 2012 (UTC)

I own a copy of the Encyclopedia but not the Handbook. From what I can recall of the Handbook, ... actually, I can't recall at the moment. Without the letter N, the numbers 1 to 2372 would seem to offer potential for confusion.
In regards to the Encyclopedia, I can tell you that it references both the N-numbers and the A-numbers, and if I feel the least bit of doubt about that, I can just grab the book off my shelf and verify. Alonso del Arte 17:54, 21 July 2012 (UTC)
From what I recall, the Encyclopedia introduced the M-numbers (standing for what?), and to distinguish the sequences that were in the 'Handbook' the Encyclopedia also introduced the N-numbers (N standing for Neil, if I am right, although better ask Neil Sloane to be sure about it). I'll check the Handbook at the library in the next few days. — Daniel Forgues 01:57, 22 July 2012 (UTC)