Numbers k for which A003958(sigma(k)) + A064989(sigma(k)) is equal to A003958(k) + A064989(k).

A351440

Numbers k for which A003958(sigma(k)) + A064989(sigma(k)) is equal to A003958(k) + A064989(k).

Terms

    a(0) =1a(1) =6a(2) =28a(3) =496a(4) =8128a(5) =30240a(6) =32760a(7) =240408a(8) =2178540a(9) =6828720a(10) =13042080a(11) =23569920a(12) =33550336a(13) =42402048a(14) =45532800a(15) =142990848a(16) =1379454720

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