Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 1.
A116170
Numbers k such that k concatenated with k+2 gives the product of two numbers which differ by 1.
Terms
- a(0) =590a(1) =738a(2) =830a(3) =1080a(4) =4508a(5) =20660a(6) =29754a(7) =980300a(8) =6694218a(9) =49826988a(10) =117738578a(11) =131505858a(12) =132231404a(13) =176445054a(14) =177285320a(15) =247979808a(16) =252028388a(17) =335180054a(18) =336337790a(19) =404958680a(20) =406231130a(21) =431477468a(22) =499519478
External references
- oeis: A116170