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A184885
Irregular triangle in which row n has the values of k>1 such that sum_{i=n..n+k-1} i^2 is a square.
2
24, 2, 578, 961, 23, 33, 50, 184, 2209, 24, 552049, 22898, 96, 97, 312, 23, 5329, 11, 2, 24, 289, 1221025, 96, 59, 6889, 24, 26, 49, 554, 600, 3601, 21600, 33, 338, 50, 96, 169, 578, 4056, 61250, 148825, 11, 59, 312, 649, 11881, 24, 50, 122, 15625, 96, 338, 3479, 2075, 33, 3179, 242, 218, 864, 50, 8450, 122, 22801, 36481, 24, 194, 25921, 50, 242
OFFSET
1,1
COMMENTS
That is, this sequence gives the number of squares in the sums described in A184763. Sequence A184762 gives the length of row n. A180442 lists the nonempty rows. All these numbers must appear in A001032.
FORMULA
Row n = row n of A184763 minus n-1.
EXAMPLE
The triangle is
(row 1) 24
(row 3) 2, 578, 961
(row 7) 23, 33, 50, 184, 2209
(row 9) 24, 552049
(row 11) 22898
(row 13) 96
(row 15) 97, 312
CROSSREFS
Sequence in context: A040573 A040574 A040575 * A159540 A040564 A040565
KEYWORD
nonn,tabf,hard
AUTHOR
T. D. Noe, Jan 24 2011
STATUS
approved