68523
domain: N
Appears in sequences
- a(n) = diagonal sum of left justified array T given by A027113.at n=29A027131
- G.f.: (1+x)/Product_{m>0} (1 - x^m).at n=40A084376
- Number of 4 X n 0..1 arrays with rows, diagonals and antidiagonals unimodal and columns nondecreasing.at n=12A223840
- Starts of runs of 3 consecutive Catalan-Niven numbers (A352508).at n=17A352510