Irregular triangle whose n-th row gives the constellation encoded in S000681(n).
0, 0, 2, 0, 4, 0, 6, 0, 4, 6, 0, 2, 6, 0, 8, 0, 6, 8, 0, 2, 8, 0, 2, 6, 8, 0, 10, 0, 6, 10, 0, 4, 10, 0, 4, 6, 10, 0, 12, 0, 10, 12, 0, 8, 12, 0, 6, 12, 0, 6, 10, 12, 0, 6, 8, 12, 0, 4, 12, 0, 4, 10, 12, 0, 4, 6, 12, 0, 4, 6, 10, 12, 0, 2, 12, 0, 2, 8, 12
1
T. D. Noe, Plot of 160 rows
T. D. Noe, Table of 160 rows
(Mma) (* t2 contains the numbers found in S000681 *) Table[Flatten[Position[IntegerDigits[t2[[n]], 2], 1]] - 1, {n, Length[t2]}]
Cf. S000681.
nonn,tabf
T. D. Noe, Jul 09 2015