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A279559 as a simple table

na(n)
01
11
22
35
415
552
6201
7845
83801
918089
1090316
11470010
122536077
1314127741
1480966690
15475979359
162863157581
1717585971037
18110095460224
19701418693025
204541497543092
2129847982448766
22198913925919741
231342890255133042
249176456969273844
2563422002415068463

[1,1,2,5,15,52,201,845,3801,18089,90316,470010,
 2536077,14127741,80966690,475979359,2863157581,
 17585971037,110095460224,701418693025,
 4541497543092,29847982448766,198913925919741,
 1342890255133042,9176456969273844,
 63422002415068463]