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A137434 as a simple table

na(n)
11
2121
31444
444944
56441444
647444544
74434494464
844424414441
91113111511681
1022222220262025
11444431244445444
1222292262226224225
13441544444344443449
141113101111111117041
152222222222222640225
1611111119101145491111121

[1,121,1444,44944,6441444,47444544,4434494464,
 44424414441,1113111511681,22222220262025,
 444431244445444,22292262226224225,
 441544444344443449,1113101111111117041,
 2222222222222640225,11111119101145491111121]