STATUS
reviewed
approved
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Revision History for A067756
(Bold, blue-underlined text is an addition; faded, red-underlined text is aShowing entries 1-10 | older changes
STATUS
proposed
reviewed
STATUS
editing
proposed
COMMENTS
Every term of the sequence after the second is a prime p congruent to 1 (mod 60), i.e., for n > 2, a(n) is a subsequence of A088955. The Pythagorean triple is {sqrt(2p-1), p-1, p}. - Lekraj Beedassy, Mar 12 2002
Other, larger, The other (i.e., long) leg of the Pythagorean triangle is p-1. - Zak Seidov, Oct 30 2015
LINKS
Andreas Boe and Robert Israel, <a href="/A067756/b067756.txt">Table of n, a(n) for n = 1..10000</a> (first 184 terms from Andreas Boe)
EXAMPLE
For pa(1)=5, the right triangle is 3, 4, 5 is the smallest with 3 and 5 prime.
For pa(10)=5101, the right triangle is 101, 5100, 5101 with 101 and 5101 prime.
STATUS
approved
editing
LINKS
Andreas Boe and Robert Israel, <a href="/A067756/b067756_3.txt">Table of n, a(n) for n = 1..10000</a> (first 184 terms from Andreas Boe)
STATUS
editing
approved
LINKS
Andreas Boe and Robert Israel, <a href="/A067756/b067756_3.txt">Table of n, a(n) for n = 01..10000</a> (0 to 183 first 184 terms from Andreas Boe).
OFFSET
0,1,1
COMMENTS
The offset probably should be 1, but this sequence is exceptional and has offset 0. Please do not change it! - N. J. A. Sloane, Sep 30 2014
STATUS
approved
editing
STATUS
proposed
approved
STATUS
editing
proposed