A147519 Values of a in Pythagorean triples, see comment.

10, 11, 12, 12, 13, 14, 15, 15, 16, 16, 18, 18, 20, 20, 21, 21, 24, 24, 24, 25, 27, 28, 30, 30, 32, 33, 33, 35, 36, 36, 39, 39, 40, 40, 42, 45, 48, 48, 51, 54, 57, 60, 65

Offset

1,1

Comments

Two-digit Pythagorean triples (a,b,c), a^2+b^2 = c^2, with a,b,c all two-digit numbers, 10<=a<b<c<=99, sorted by a and then by b. Corresponding values of b and c are

24,60,16,35,84,48,20,36,30,63,24,80,21,48,28,72,32,45,70,60,36,45,40,72,60,44,56,84,48,77,52,80,42,75,56,60,55,64,68,72,76,63,72

and

26,61,20,37,85,50,25,39,34,65,30,82,29,52,35,75,40,51,74,65,45,53,50,78,68,55,65,91,60,85,65,89,58,85,70,75,73,80,85,90,95,87,97

Links

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

Zak Seidov, Two-digit Pythagorean triples

Example

There are exactly 43 2d PT's, first
{10,24,26}, 10^2+24^3=26^2 and last
{65,72,97}, 65^2+72^2=97^2.

Crossrefs

A146979 Number of Pythagorean triples (a, b, c), a^2+b^2=c^2, with a, b, c all n-digit numbers, a<b.

Sequence in context: A299981 A347180 A123895 * A303657 A342367 A303879

Adjacent sequences: A147516 A147517 A147518 * A147520 A147521 A147522

Keyword

fini,full,nonn

Author

Zak Seidov, Nov 06 2008

Status

approved