Record numbers of unordered triples {a, b, c} of distinct positive integers from 1 to n such that a*b = c*n.
A292430
Record numbers of unordered triples {a, b, c} of distinct positive integers from 1 to n such that a*b = c*n.
Terms
- a(0) =0a(1) =2a(2) =4a(3) =8a(4) =13a(5) =16a(6) =26a(7) =38a(8) =46a(9) =50a(10) =56a(11) =71a(12) =74a(13) =120a(14) =136a(15) =176a(16) =193a(17) =214a(18) =330a(19) =355a(20) =482a(21) =574a(22) =668a(23) =839a(24) =890a(25) =996a(26) =1088a(27) =1223a(28) =1528a(29) =1920
External references
- oeis: A292430