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A149758 as a simple table

na(n)
01
11
25
319
469
5277
61185
75009
821325
992733
10408629
111807995
128038887
1335981881
14162014757
15732494001
163321753179
1715111904573
1868984336243
19315806352009
201448850054545
216660481232055
2230684420675499
23141639855244171
24654874542763787
253032247286729153
2614060715339443201
2765292539049162537

[1,1,5,19,69,277,1185,5009,21325,92733,408629,
 1807995,8038887,35981881,162014757,732494001,
 3321753179,15111904573,68984336243,315806352009,
 1448850054545,6660481232055,30684420675499,
 141639855244171,654874542763787,3032247286729153,
 14060715339443201,65292539049162537]