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A305559 [0, -1, -1] together with A000290. 0
0, -1, -1, 0, 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144, 169, 196, 225, 256, 289, 324, 361, 400, 441, 484, 529, 576, 625, 676, 729, 784, 841, 900, 961, 1024, 1089, 1156, 1225, 1296, 1369, 1444, 1521, 1600, 1681, 1764, 1849, 1936, 2025, 2116, 2209, 2304, 2401, 2500 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,6

COMMENTS

Squares leading to an autosequence of the first kind.

The third sequence of the array

A060576(n+1)=         0,  1, 1,  1,  1,   1,   1,   1,   1,  1, ...

A289207(n)=      0,   0,  0, 1,  2,  3,   4,   5,   6,   7, ...

a(n)=       0,  -1,  -1,  0, 1,  4,  9,  16,  25,  36, ...

      0,   10,  10,   5,  0, 1,  8, 27,  64, 125, ...

0, -113, -113, -68, -23,  0, 1, 16, 81, 256, ... .

The first full vertical is (-1)^n*A033312(n).

From 0, the first two nonzero antidiagonals are 0, -1, 10, -113, 1526, ... = (-1)^n* A176824(n+1).

See OEIS Wiki, Autosequence.

a(n) difference table:

0, -1, -1, 0, 1, 4, 9, 16, 25, ...

-1, 0,  1, 1, 3, 5, 7,  9, 11, ...

1,  1,  0, 2, 2, 2, 2,  2,  2, ...

0, -1,  2, 0, 0, 0, 0,  0,  0, ...

LINKS

Table of n, a(n) for n=0..53.

CROSSREFS

Cf. A003992, A033312, A060576, A176824, A289207, A000290, A113679.

Sequence in context: A000290 A162395 A253909 * A221222 A144913 A018885

Adjacent sequences:  A305556 A305557 A305558 * A305560 A305561 A305562

KEYWORD

sign

AUTHOR

Paul Curtz, Jun 21 2018

STATUS

approved

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Last modified August 22 20:35 EDT 2019. Contains 326186 sequences. (Running on oeis4.)