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A318915 as a simple table

na(n)
01
11
23
35
411
515
633
741
877
9105
10173
11215
12381
13449
14699
15911
161335
171611
182433
192867
204179
215113
226903
238251
2411769
2513661
2618177
2722011
2828997
2933711
3045251

[1,1,3,5,11,15,33,41,77,105,173,215,381,449,699,
 911,1335,1611,2433,2867,4179,5113,6903,8251,11769,
 13661,18177,22011,28997,33711,45251]