First occurrence of difference n between two consecutive terms of A000404. a(n) gives the lower term. The upper term is A355238.

A355237

First occurrence of difference n between two consecutive terms of A000404. a(n) gives the lower term. The upper term is A355238.

Terms

    a(0) =17a(1) =8a(2) =2a(3) =13a(4) =20a(5) =74a(6) =90a(7) =137a(8) =377a(9) =3050a(10) =986a(11) =1669a(12) =4181a(13) =6530a(14) =1493a(15) =8434a(16) =9704a(17) =22160a(18) =10709a(19) =5165a(20) =16109a(21) =154708a(22) =58418a(23) =31657a(24) =52393a(25) =401480a(26) =176810a(27) =101349a(28) =105572a(29) =678356

External references