References to A001844

Centered square numbers: 2n(n+1)+1. Sums of two consecutive squares. Also, consider all Pythagorean triples (X,Y,Z=Y+1) ordered by increasing Z; then sequence gives Z values.
1, 5, 13, 25, 41, 61, 85, 113, 145, 181, 221, 265, 313, 365, 421, 481, 545, 613, 685


1 seqfan posts

Mon Jan 12 11:27:00 CET 2009    [seqfan] Re: Index of linear recurrences

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
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