A253287 - OEIS

A253287

Numbers representable as x^y + x*y and as b^c + b + c, where x, y, b, c are integers > 1.

8, 14, 3135, 10714, 70342709283

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OFFSET

1,1

COMMENTS

Intersection of A250004 and A253775.

No more terms < 10^20. - Lars Blomberg, Dec 13 2015

LINKS

EXAMPLE

a(2) = 14 = 2^3 + 2*3 = 3^2 + 2 + 3.

a(3) = 3135 = 55^2 + 55*2 = 5^5 + 5 + 5.

a(4) = 10714 = 22^3 + 22*3 = 103^2 + 103 + 2.

a(5) = 70342709283 = 265221^2 + 265221*2 = 4128^3 + 4128 + 3.

CROSSREFS

KEYWORD

nonn,more

AUTHOR

STATUS

approved