Multiplication of pair of contiguous repunits, i.e., (0*1, 1*11, 11*111, 111*1111, 1111*11111, ...).
A274766
Multiplication of pair of contiguous repunits, i.e., (0*1, 1*11, 11*111, 111*1111, 1111*11111, ...).
Terms
- a(0) =0a(1) =11a(2) =1221a(3) =123321a(4) =12344321a(5) =1234554321a(6) =123456654321
External references
- oeis: A274766