Numbers k such that both numbers k and k+1 are in the sequence A248903.

Terms

a(0) =17a(1) =69a(2) =70a(3) =241a(4) =405a(5) =2606a(6) =3339a(7) =4116a(8) =7116a(9) =15148a(10) =15149a(11) =20162a(12) =137633a(13) =324410a(14) =332504a(15) =439298a(16) =1012547a(17) =1121608a(18) =2482209a(19) =5028662a(20) =6330857a(21) =7180864a(22) =7180865a(23) =9569168a(24) =14452770a(25) =17021632a(26) =110229972a(27) =110229973a(28) =193329301