A298044 1/16 of the edge with the largest 2-adic valuation of a primitive 3-simplex (0, b=A031173, c=A031174, d=A031175).

15, 15, 30, 45, 10, 63, 99, 55, 52, 187, 195, 374, 33, 396, 418, 286, 510, 570, 572, 490, 221, 63, 273, 910, 1050, 1092, 660, 1160, 882, 885, 1148, 1485, 1505, 1092, 495, 1870, 308, 858, 1485, 585, 990, 385, 1333, 1001, 2907, 3045, 2277, 1394, 1475, 2310, 3690, 594, 3885, 3465, 2755, 1496, 4422, 2730, 3393

Offset

1,1

Comments

Each primitive 3-simplex (0,b,c,d) with b > c > d is built by an odd, an even and an edge with the largest 2-adic valuation.

Links

Table of n, a(n) for n=1..59.

Eric Weisstein's World of Mathematics, Trirectangular Tetrahedron

Crossrefs

Cf. A298046, A298047, A031173, A031174, A031175.

Sequence in context: A003890 A040211 A003891 * A022349 A036379 A070920

Adjacent sequences: A298041 A298042 A298043 * A298045 A298046 A298047

Keyword

nonn

Author

Ralf Steiner, Jan 11 2018

Status

approved