-5905

Appears in sequences

• E.g.f. arctanh(log(x+1)/exp(x)).at n=5A013565
• Second numbers F = a(n) of two non-consecutive numbers (E, F) different from (C, D) = (A352222(n), A352223(n)), such that the sums of their cubes are equal to centered cube numbers and to at least one other sum of two cubes, i.e. A = B^3 + (B+1)^3 = C^3 + D^3 = E^3 + F^3.at n=7A352225