A diagonal of irregular triangle A291845.
A291847
A diagonal of irregular triangle A291845.
Terms
- a(0) =1a(1) =4a(2) =26a(3) =224a(4) =2389a(5) =30324a(6) =446109a(7) =7460928a(8) =139775763a(9) =2899264620a(10) =65954625560
External references
- oeis: A291847