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A261482 as a simple table

na(n)
61
77
842
9210
10985
114400
1218944
1380067
14333431
151372364
165607350
1722788432
1892221903
19372094575
201498066156
216021295070
2224172138331
2396949953648
24388584438750
251556689868075
266233817797545
2724956454853128
2899889360100264
29399748052249200
301599564125648941

[1,7,42,210,985,4400,18944,80067,333431,1372364,
 5607350,22788432,92221903,372094575,1498066156,
 6021295070,24172138331,96949953648,388584438750,
 1556689868075,6233817797545,24956454853128,
 99889360100264,399748052249200,1599564125648941]