[1,1,4,14,56,237,1036,4603,20951,96544,448844,
2106027,9950648,47254566,225457864,1080095458,
5191016887,25019333735,120895386015,585447565802,
2840483620046,13805374592905,67200268124866,
327556541371822,1598606372758210,7810659910922604,
38201283093553175,187014395949907268]
|