The OEIS is supported by the many generous donors to the OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A334675 Number of nonprimitive Heronian triangles with mutually distinct side lengths and perimeter A334674(n). 0
 1, 1, 1, 2, 1, 2, 1, 3, 1, 1, 3, 5, 1, 4, 2, 2, 3, 1, 2, 4, 1, 1, 2, 4, 3, 9, 1, 7, 5, 3, 1, 2, 2, 2, 5, 11, 2, 6, 3, 1, 8, 10, 6, 1, 9, 7, 2, 1, 7, 8, 5, 9, 2, 4, 7, 7, 15, 1, 3, 15, 2, 1, 1, 2, 2, 7, 11, 3, 3, 6, 3, 16, 3, 9, 13, 8, 6, 5, 21, 17, 6, 2, 12, 9, 8, 3, 6, 1, 11, 1 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 LINKS Table of n, a(n) for n=1..90. Eric Weisstein's World of Mathematics, Heronian Triangle Wikipedia, Heronian triangle Wikipedia, Integer Triangle EXAMPLE a(1) = 1; there is one nonprimitive Heronian triangle with perimeter A334674(1) = 24 whose side lengths are mutually distinct, [6,8,10]. a(2) = 1; there is one nonprimitive Heronian triangle with perimeter A334674(2) = 36 whose side lengths are mutually distinct, [9,12,15]. CROSSREFS Cf. A331366, A334665, A334674. Sequence in context: A201167 A202853 A228572 * A078380 A062356 A257993 Adjacent sequences: A334672 A334673 A334674 * A334676 A334677 A334678 KEYWORD nonn AUTHOR Wesley Ivan Hurt, May 07 2020 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified September 23 04:47 EDT 2023. Contains 365532 sequences. (Running on oeis4.)