Regular triangle read by rows, T(n,k) is the least integer m such that sigma(m)/m is greater than n + (k-1)/n.
A352281
Regular triangle read by rows, T(n,k) is the least integer m such that sigma(m)/m is greater than n + (k-1)/n.
Terms
- a(0) =2a(1) =12a(2) =36a(3) =180a(4) =720a(5) =2520a(6) =27720a(7) =110880a(8) =720720a(9) =10810800a(10) =122522400a(11) =1396755360a(12) =6983776800a(13) =160626866400
External references
- oeis: A352281