Numbers k such that nearest common ancestor of k and sigma(k) in Doudna tree (A347879) is the grandparent of k.
A347392
Numbers k such that nearest common ancestor of k and sigma(k) in Doudna tree (A347879) is the grandparent of k.
Terms
- a(0) =8a(1) =9a(2) =12a(3) =13a(4) =24a(5) =35a(6) =160a(7) =455a(8) =42550a(9) =127650a(10) =8041950a(11) =22469750a(12) =58506250a(13) =67409250a(14) =175518750a(15) =394055550a(16) =4246782750
External references
- oeis: A347392