A279414 a(n) is the total number of isosceles triangles having a bounding box n X k where k is in the range 1 to n inclusive.

0, 4, 14, 22, 36, 48, 58, 66, 104, 100, 110, 118, 164, 148, 174, 174, 232, 200, 266, 226, 300, 272, 290, 282, 412, 332, 362, 358, 440, 376, 494, 386, 572, 464, 490, 490, 660, 476, 546, 562, 756, 552, 718, 582, 760, 692, 682, 634, 1004, 716, 862, 746, 900, 744

Offset

1,2

Comments

Row sums of A279413.

Links

Lars Blomberg, Table of n, a(n) for n = 1..10000

Crossrefs

Cf. A186434, A187452, A271910-A271913, A271915, A279413.

Sequence in context: A199984 A044437 A298008 * A199987 A201016 A317734

Adjacent sequences: A279411 A279412 A279413 * A279415 A279416 A279417

Keyword

nonn

Author

Lars Blomberg, Feb 16 2017

Status

approved