Initial prime in set of 4 consecutive primes in arithmetic progression with common difference 18.

Terms

a(0) =74453a(1) =76543a(2) =132893a(3) =182243a(4) =202823a(5) =297403a(6) =358793a(7) =485923a(8) =655453a(9) =735883a(10) =759113a(11) =780613a(12) =797833a(13) =849143a(14) =1260383a(15) =1306033a(16) =1442173a(17) =1531093a(18) =1534153a(19) =1586953a(20) =1691033a(21) =1717063a(22) =1877243a(23) =1945763a(24) =1973633a(25) =2035513a(26) =2067083a(27) =2216803a(28) =2266993a(29) =2542513