First occurrence of difference n between two consecutive terms of A000404. a(n) gives the upper term. The lower term is A355237.

A355238

First occurrence of difference n between two consecutive terms of A000404. a(n) gives the upper term. The lower term is A355237.

Terms

    a(0) =18a(1) =10a(2) =5a(3) =17a(4) =25a(5) =80a(6) =97a(7) =145a(8) =386a(9) =3060a(10) =997a(11) =1681a(12) =4194a(13) =6544a(14) =1508a(15) =8450a(16) =9721a(17) =22178a(18) =10728a(19) =5185a(20) =16130a(21) =154730a(22) =58441a(23) =31681a(24) =52418a(25) =401506a(26) =176837a(27) =101377a(28) =105601a(29) =678386

External references