a(n) is smallest difference d of an arithmetic progression dk+1 whose first prime occurs at the n-th position.

A047980

a(n) is smallest difference d of an arithmetic progression dk+1 whose first prime occurs at the n-th position.

Terms

    a(0) =1a(1) =3a(2) =24a(3) =7a(4) =38a(5) =17a(6) =184a(7) =71a(8) =368a(9) =19a(10) =668a(11) =59a(12) =634a(13) =167a(14) =512a(15) =757a(16) =1028a(17) =197a(18) =1468a(19) =159a(20) =3382a(21) =799a(22) =4106a(23) =227a(24) =10012a(25) =317a(26) =7628a(27) =415a(28) =11282a(29) =361

External references