A234889Number of (n+1) X (7+1) 0..5 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

98696, 551048, 2734000, 20512760, 138216800, 1249781316, 9589218960, 97684673000, 792839750040, 8760287132596, 72998710382504, 853176368587936, 7205405503541632, 87498882416514432, 744363442815523768

The first term appear at position 30,644.

…26118442018908885319635698696279503673842431301133175…
position 30,644
termsstringfirst positionoccurrences
19869630,6449,974
298696551048not within 1,000,000,0000

Searched the first 1,000,000,000 digits. Strings longer than 12 digits are not indexed.