OFFSET
1,1
COMMENTS
This sequence is similar to A292625, see the MathOverflow link.
The matrix M is given by A374258. - Ahmad J. Masad, Jul 29 2024
LINKS
Michel Marcus, Table of n, a(n) for n = 1..820 (Rows 1..40)
Ahmad J. Masad, Conjecture that relates matrix systems with some polynomials of integer coefficients as solution sets, MathOverflow, Sep 2017.
EXAMPLE
Triangle begins:
4;
-118, 38;
9838, -3396, 120;
-2413594, 851584, -32676, 364;
...
PROG
(PARI) M(n) = matrix(n, n, i, j, ((3^(i+1) + 1)^(j-1) + 2)/3);
b(n) = vector(n, i, ((3^(i+1)+1)^n + 2)/3);
row(n) = matsolve(M(n), b(n)~)~; \\ Michel Marcus, Sep 03 2023
CROSSREFS
KEYWORD
sign,tabl
AUTHOR
Ahmad J. Masad, Sep 03 2023
EXTENSIONS
More terms from Michel Marcus, Sep 03 2023
STATUS
approved