Number of ways to write n as an ordered sum x^2+T_y of a square and a triangular number, allowing x=0 or T_y=0.
1, 2, 1, 1, 2, 1, 1, 2, 0, 1, 3, 1, 1, 0, 1, 2, 2, 1, 0, 3, 0, 1, 2, 0, 1, 2, 2, 0, 2, 1, 1, 2, 1, 0
3 seqfan posts
Sun Jan 25 19:09:52 CET 2009 [seqfan] Re: A101428 compared to A101409, polyminoes and trees
Sun Jan 25 19:09:52 CET 2009 [seqfan] Re: A101428 compared to A101409, polyminoes and trees
Sun Jan 25 18:09:40 CET 2009 [seqfan] A101428 compared to A101409, polyminoes and trees
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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