Numbers k such that k*(k+7) gives the concatenation of two numbers m and m-3.
A116269
Numbers k such that k*(k+7) gives the concatenation of two numbers m and m-3.
Terms
- a(0) =87a(1) =3675a(2) =6319a(3) =8785a(4) =48742a(5) =51252a(6) =87616a(7) =3762553a(8) =6237441a(9) =9217099a(10) =3266298273a(11) =3520463763a(12) =6479536231a(13) =6733701721a(14) =8063694647a(15) =8317860137
External references
- oeis: A116269