Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 2.
A128672
Numbers m such that m^k does not divide the denominator of the m-th generalized harmonic number H(m,k) nor the denominator of the m-th alternating generalized harmonic number H'(m,k), for k = 2.
Terms
- a(0) =20a(1) =42a(2) =100a(3) =110a(4) =156a(5) =272a(6) =294a(7) =342a(8) =500a(9) =506a(10) =812a(11) =930a(12) =1210a(13) =1332a(14) =1640a(15) =1806a(16) =2028a(17) =2058a(18) =2162a(19) =2500a(20) =2756a(21) =3422a(22) =3660a(23) =4422a(24) =4624a(25) =4970a(26) =5256a(27) =6162a(28) =6498a(29) =6806
External references
- oeis: A128672