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”).

A090745 as a simple table

na(n)
11
22
33
45
56
67
716
817
918
10104
11127
12213
131143
144654
154897
1617046
1733424
1847407

[1,2,3,5,6,7,16,17,18,104,127,213,1143,4654,4897,
 17046,33424,47407]