A337264 Array read by antidiagonals: h(m,n) (m>=0, n>=0) = 1 if there is an edge to the right from grid point (m,n) in the Even Conant lattice.

1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1

Offset

0

Links

Table of n, a(n) for n=0..90.

N. J. A. Sloane, Notes on the Conant Gasket, the Conant Lattice, and Associated Sequences, Preliminary version, Aug 23 2020

N. J. A. Sloane, The Even Conant Lattice (The grid points (m,n) are labeled with pairs v(m,n), h(m,n).)

Example

The array begins as follows. The rows are shown in the appropriate order for looking at the first quadrant (that is, row 0 is at the bottom, then row 1, and so on):
row 7 = 1, 1, 1, 0, 1, 1, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, ...
row 6 = 1, 1, 1, 1, 0, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, ...
row 5 = 1, 0, 0, 0, 1, 1, 0, 1, 0, 1, 1, 1, 0, 0, 1, 0, ...
row 4 = 1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, ...
row 3 = 1, 1, 0, 1, 0, 0, 1, 0, 1, 1, 0, 1, 0, 0, 1, 0, ...
row 2 = 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, 1, 1, 0, 0, ...
row 1 = 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, 1, 0, ...
row 0 = 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, ...
The initial antidiagonals (starting in the bottom left corner) are:
[1]
[1, 1]
[1, 0, 1]
[1, 1, 1, 1]
[1, 1, 0, 0, 1]
[1, 1, 0, 0, 1, 1]
[1, 0, 1, 1, 1, 0, 1]
[1, 1, 0, 1, 0, 1, 1, 1]
[1, 1, 1, 0, 0, 0, 0, 0, 1]
[1, 1, 1, 1, 1, 0, 1, 0, 1, 1]
[1, 0, 1, 0, 0, 1, 0, 0, 1, 0, 1]
[1, 1, 1, 1, 1, 0, 0, 0, 1, 1, 1, 1]
[1, 1, 0, 1, 1, 1, 1, 1, 1, 1, 0, 0, 1]
...

Maple

For Maple code see my "Notes".

Crossrefs

Cf. A328078, A328080, A337263, A337265.

Sequence in context: A106470 A106465 A071027 * A099990 A089939 A330550

Adjacent sequences: A337261 A337262 A337263 * A337265 A337266 A337267

Keyword

nonn,tabl

Author

N. J. A. Sloane, Aug 22 2020

Status

approved