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A198172 as a simple table

na(n)
128841971
241971693
382534211
442117067
530664709
631725359
749303819
875648233
937867831
1071201909
1148566923
1226648213
1313393607
1425409171
1557595919
1621861173
1781932611
1879962749
1924891227
2030119491
2140656643
2230860213
2339494639
2439522473
2598609437
2653921717

[28841971,41971693,82534211,42117067,30664709,
 31725359,49303819,75648233,37867831,71201909,
 48566923,26648213,13393607,25409171,57595919,
 21861173,81932611,79962749,24891227,30119491,
 40656643,30860213,39494639,39522473,98609437,
 53921717]