A129737 List of primitive prime divisors of the numbers 4^n-3^n (A005061) in their order of occurrence.

7, 37, 5, 11, 71, 13, 14197, 337, 6553, 181, 23, 174659, 193, 131, 500111, 379, 61, 601, 17, 4241, 17050729021, 19, 163, 10814953, 25309, 8861, 8352709, 727, 859, 47, 44483, 17389, 1933, 51361, 1440528320401, 313, 31357, 36174709, 2053, 29, 376853, 59, 349

Offset

1,1

Comments

Read A005061 term-by-term, factorize each term, write down any primes not seen before.

Links

Table of n, a(n) for n=1..43.

G. Everest et al., Primes generated by recurrence sequences, Amer. Math. Monthly, 114 (No. 5, 2007), 417-431.

K. Zsigmondy, Zur Theorie der Potenzreste, Monatsh. Math., 3 (1892), 265-284.

Crossrefs

Cf. A005061, A129736, A059801, A129733.

Sequence in context: A356076 A120106 A240274 * A176544 A281994 A246603

Adjacent sequences: A129734 A129735 A129736 * A129738 A129739 A129740

Keyword

nonn

Author

N. J. A. Sloane, May 13 2007

Status

approved