A298047 The odd edge of a primitive 3-simplex (0, b=A031173, c=A031174, d=A031175).

117, 275, 693, 85, 231, 1155, 187, 429, 855, 2475, 2035, 2295, 6325, 195, 1155, 1755, 495, 1575, 9405, 10725, 2925, 12075, 4901, 1881, 11753, 7579, 8789, 16929, 19305, 5643, 4599, 17157, 6435, 935, 26649, 23751, 10725, 35321, 35075, 1105, 2163, 38475, 38571, 39195, 5491, 15939, 51205, 24225, 9405, 57275

Offset

1,1

Comments

Each primitive 3-simplex (0,b,c,d) with b > c > d is built by 1 odd edge and 2 even edges; the edge that is considered here is the odd edge.

Links

Table of n, a(n) for n=1..50.

Eric Weisstein's World of Mathematics, Trirectangular Tetrahedron

Crossrefs

Cf. A298044, A298046, A031173, A031174, A031175.

Sequence in context: A063338 A304611 A304610 * A252861 A252854 A156884

Adjacent sequences: A298044 A298045 A298046 * A298048 A298049 A298050

Keyword

nonn

Author

Ralf Steiner, Jan 11 2018

Status

approved