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A244768 as a simple table

na(n)
137
2137
3337
4937
51237
61637
72137
82237
92437
102837
113037
123137
133637
144337
154637
164937
175237
185437
195737
206037
216337
226637
236737
247237
257537
267937
278237
288537
298737
308837
319137
329337
339437
3410037
3510337
3610837
3710937
3811437
3912037
4012437
4112637
4213037

[37,137,337,937,1237,1637,2137,2237,2437,2837,
 3037,3137,3637,4337,4637,4937,5237,5437,5737,6037,
 6337,6637,6737,7237,7537,7937,8237,8537,8737,8837,
 9137,9337,9437,10037,10337,10837,10937,11437,
 12037,12437,12637,13037]