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A292133
Square array A(n,k), n>=0, k>=0, read by antidiagonals, where column k is the expansion of Product_{j>=1} 1/(1 + k*x^j).
2
1, 1, 0, 1, -1, 0, 1, -2, 0, 0, 1, -3, 2, -1, 0, 1, -4, 6, -6, 1, 0, 1, -5, 12, -21, 14, -1, 0, 1, -6, 20, -52, 69, -26, 1, 0, 1, -7, 30, -105, 220, -201, 50, -1, 0, 1, -8, 42, -186, 545, -868, 591, -102, 2, 0, 1, -9, 56, -301, 1146, -2705, 3436, -1785, 214, -2, 0
OFFSET
0,8
LINKS
EXAMPLE
Square array begins:
1, 1, 1, 1, 1, ...
0, -1, -2, -3, -4, ...
0, 0, 2, 6, 12, ...
0, -1, -6, -21, -52, ...
0, 1, 14, 69, 220, ...
CROSSREFS
Columns k=0..3 give A000007, A081362, A071109, A261582.
Rows n=0..1 give A000012, (-1)*A001477.
Main diagonal gives A292134.
Sequence in context: A331923 A342129 A292861 * A304482 A309021 A307968
KEYWORD
sign,tabl
AUTHOR
Seiichi Manyama, Sep 09 2017
STATUS
approved