Numbers n such that n and n+1 are terms in A187086.

Terms

a(0) =39a(1) =291a(2) =2158a(3) =10083a(4) =22178a(5) =60483a(6) =108291a(7) =129382a(8) =235138a(9) =266403a(10) =288291a(11) =311043a(12) =367491a(13) =410691a(14) =524163a(15) =561478a(16) =608158a(17) =662691a(18) =1563843a(19) =1713717a(20) =2007363a(21) =3126058a(22) =3512163a(23) =3573778