Smallest k such that the difference between the k-th triangular number and the following prime is equal to n.

A075403

Smallest k such that the difference between the k-th triangular number and the following prime is equal to n.

Terms

    a(0) =2a(1) =1a(2) =5a(3) =28a(4) =10a(5) =48a(6) =13a(7) =15a(8) =65a(9) =160a(10) =58a(11) =80a(12) =106a(13) =32a(14) =162a(15) =91a(16) =94a(17) =188a(18) =70a(19) =127a(20) =62a(21) =304a(22) =201a(23) =120a(24) =394a(25) =103a(26) =141a(27) =244a(28) =382a(29) =455

External references