login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A142072 as a simple table

na(n)
119
253
3223
4257
5359
6461
7563
8631
9733
10937
11971
121039
131277
141447
151481
161549
171583
181753
191787
201889
212161
222297
232399
242467
252671
262909
273011
283079
293181
303623
313691
323793
333929
344099
354133
364201
374337
384507
394643
404813
415051
425119
435153
445323
455527

[19,53,223,257,359,461,563,631,733,937,971,1039,
 1277,1447,1481,1549,1583,1753,1787,1889,2161,2297,
 2399,2467,2671,2909,3011,3079,3181,3623,3691,3793,
 3929,4099,4133,4201,4337,4507,4643,4813,5051,5119,
 5153,5323,5527]