OFFSET
0,1
COMMENTS
Rows have irregular lengths.
The length of row n is A046799(n).
REFERENCES
J. Brillhart et al., Factorizations of b^n +- 1. Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 2nd edition, 1985; and later supplements.
LINKS
T. D. Noe, Rows n = 0..500 of triangle, flattened (derived from Brillhart et al.)
J. Brillhart et al., Factorizations of b^n +- 1, Contemporary Mathematics, Vol. 22, Amer. Math. Soc., Providence, RI, 3rd edition, 2002.
S. S. Wagstaff, Jr., The Cunningham Project.
EXAMPLE
Triangle begins:
2;
3;
5;
3,17;
3,11;
5,13;
3,43;
257;
...
MATHEMATICA
Flatten[Table[Transpose[FactorInteger[2^n+1]][[1]], {n, 0, 25}]] (* Harvey P. Dale, Aug 10 2011 *)
PROG
(PARI) apply( A060444_row(n)=factor(2^n+1)[, 1]~, [0..10]) \\ M. F. Hasler, Nov 19 2018
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
STATUS
approved