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A026375 as a simple table

na(n)
01
13
211
345
4195
5873
63989
718483
886515
9408105
101936881
119238023
1244241261
13212601015
141024642875
154950790605
1623973456915
17116312293305
18565280386625
192751474553575
2013411044301945
2165448142561035
22319756851757695

[1,3,11,45,195,873,3989,18483,86515,408105,
 1936881,9238023,44241261,212601015,1024642875,
 4950790605,23973456915,116312293305,565280386625,
 2751474553575,13411044301945,65448142561035,
 319756851757695]