Positive numbers n for which A000120(n) = k*A294898(n), with k < 0; numbers for which A326130(n) = sigma(n) - A005187(n).

A326131

Positive numbers n for which A000120(n) = k*A294898(n), with k < 0; numbers for which A326130(n) = sigma(n) - A005187(n).

Terms

    a(0) =6a(1) =28a(2) =110a(3) =496a(4) =884a(5) =8128a(6) =18632a(7) =85936a(8) =116624a(9) =15370304a(10) =33550336a(11) =73995392a(12) =815634435a(13) =3915380170a(14) =5556840416a(15) =6800695312a(16) =8589869056

External references