login

A064440 as a simple table

na(n)
16
221
331
479
5121
6265
7271
8379
9541
10631
111051
121351
131597
141711
152071
162401
172551
182761
192881
202941
213811
224111
234471
244531
254621
265251
276091
288341
298371
308401
318821
329871
3311551
3413651
3516171
3619531
3721211
3822681
3923101
4027931
4130661
4232551
4333811
4437591

[6,21,31,79,121,265,271,379,541,631,1051,1351,
 1597,1711,2071,2401,2551,2761,2881,2941,3811,4111,
 4471,4531,4621,5251,6091,8341,8371,8401,8821,9871,
 11551,13651,16171,19531,21211,22681,23101,27931,
 30661,32551,33811,37591]