Number of (n+1) X (1+1) 0..2 arrays with the upper median equal to the lower median in every 2 X 2 subblock.
A235974
Number of (n+1) X (1+1) 0..2 arrays with the upper median equal to the lower median in every 2 X 2 subblock.
Terms
- a(0) =39a(1) =181a(2) =815a(3) =3741a(4) =16999a(5) =77701a(6) =354015a(7) =1615917a(8) =7368343a(9) =33618069a(10) =153332623a(11) =699480765a(12) =3190600647a(13) =14554394789a(14) =66389867839a(15) =302842866765
External references
- oeis: A235974