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Search: a212678 -id:a212678
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A211795
Number of (w,x,y,z) with all terms in {1,...,n} and w*x < 2*y*z.
+10
203
0, 1, 11, 58, 177, 437, 894, 1659, 2813, 4502, 6836, 10008, 14121, 19449, 26117, 34372, 44422, 56597, 71044, 88160, 108115, 131328, 158074, 188773, 223604, 263172, 307719, 357715, 413493, 475690, 544480, 620632, 704381, 796413
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COMMENTS
A212678 ... w + x + y = |x - y| + |y - z|
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Last modified November 30 23:16 EST 2024. Contains 378266 sequences.
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