1517040

Appears in sequences

• Smallest m such that A001221(A001159(m)) = n.at n=15A066103
• Coefficients in q-expansion of (E_2*E_4 - E_6)/720, where E_2, E_4, E_6 are the Eisenstein series shown in A006352, A004009, A013973, respectively.at n=35A281372