Numbers k, not ending in 0, such that the consecutive digits of k^2 differ by 0 or 1.
A284046
Numbers k, not ending in 0, such that the consecutive digits of k^2 differ by 0 or 1.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =11a(4) =26a(5) =111a(6) =1111a(7) =11111a(8) =105462a(9) =111111a(10) =460688a(11) =753576a(12) =1111111a(13) =2806538a(14) =3513626a(15) =5858612a(16) =11111111a(17) =23335688a(18) =111111111a(19) =674874474a(20) =8226042716
External references
- oeis: A284046