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A011809 as a simple table

na(n)
02
114
2378
330772
46807620
53763991016
64811471951354
713277799809473332
874561538032148504662
9809821626491578170933334
1016284904611381210096496935806
11583857656205952477141180365415562

[2,14,378,30772,6807620,3763991016,4811471951354,
 13277799809473332,74561538032148504662,
 809821626491578170933334,
 16284904611381210096496935806,
 583857656205952477141180365415562]