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A253287
Numbers representable as x^y + x*y and as b^c + b + c, where x, y, b, c are integers > 1.
0
8, 14, 3135, 10714, 70342709283
OFFSET
1,1
COMMENTS
Intersection of A250004 and A253775.
No more terms < 10^20. - Lars Blomberg, Dec 13 2015
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
Sequence in context: A279708 A327875 A158967 * A357514 A331814 A082170
KEYWORD
nonn,more
AUTHOR
Alex Ratushnyak, Jan 18 2015
STATUS
approved