Sizes of successive increasing gaps between 2-pseudoprimes.

Terms

a(0) =220a(1) =460a(2) =756a(3) =780a(4) =1140a(5) =1356a(6) =1496a(7) =2000a(8) =3050a(9) =3580a(10) =4532a(11) =4784a(12) =5220a(13) =7140a(14) =12132a(15) =20412a(16) =20650a(17) =22320a(18) =26076a(19) =39424a(20) =42392a(21) =65740a(22) =81252a(23) =87698a(24) =137104a(25) =164448a(26) =203506a(27) =370396a(28) =484140a(29) =491526