A163480 Row 0 of A163334 (column 0 of A163336).

0, 1, 2, 15, 16, 17, 18, 19, 20, 141, 142, 143, 144, 145, 146, 159, 160, 161, 162, 163, 164, 177, 178, 179, 180, 181, 182, 1275, 1276, 1277, 1278, 1279, 1280, 1293, 1294, 1295, 1296, 1297, 1298, 1311, 1312, 1313, 1314, 1315, 1316, 1437, 1438, 1439

Offset: 0

Author

Antti Karttunen, Jul 29 2009

Keywords

• nonn

Crossrefs

Cf. A163481 (Y axis), A037314 (Z-order X axis).

Coordinates: A163528, A163529.

Programs

PARI

a(n) = my(v=digits(n,3),s=Mod(0,2)); for(i=1,#v, if(s,v[i]+=6); s+=v[i]); fromdigits(v,9); \\ Kevin Ryde, Sep 29 2020

Formula

a(n) = A163332(A037314(n)). - Kevin Ryde, Sep 29 2020