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”).

A109027 as a simple table

na(n)
18820
221240
321708
421780
521920
623280
723472
823625
923800
1025560
1125584
1225758
1326280
1427432
1527504
1627888
1727900
1828836
1929250
2029403
2129736
2229970
2330492
2434884
2536828
2640338
2740572
2840950
2941976
3042228
3142984
3243659
3343956
3444128

[8820,21240,21708,21780,21920,23280,23472,23625,
 23800,25560,25584,25758,26280,27432,27504,27888,
 27900,28836,29250,29403,29736,29970,30492,34884,
 36828,40338,40572,40950,41976,42228,42984,43659,
 43956,44128]