A106267 Least c such that A106265(n) + b^2 = c^3 for some b (given in A106266).

1, 3, 2, 2, 2, 3, 17, 4, 3, 7, 6, 3, 5, 3, 3, 4, 11, 4, 14, 5, 21, 6, 4, 65, 9, 7, 4, 18, 4, 5, 4, 4, 23, 8, 6, 99, 5, 20, 13, 27, 7, 5, 6, 5, 9, 11, 143, 5, 8, 5, 7, 5, 5, 5, 15, 16, 12, 6, 47, 14, 195, 7, 197, 175, 8, 6, 9, 51, 10, 6, 59, 13, 7, 11, 6

Offset

1,2

Links

M. F. Hasler, Table of n, a(n) for n = 1..2500 (replacing an incomplete version from 2013), Aug 10 2024

Formula

a(n) = (A106265(n) + A106266(n)^2)^(1/3). - M. F. Hasler, Oct 04 2013

Prog

(PARI) for(a=1, 999, (c=is_A106265(a))&& print1(c", ")) \\ M. F. Hasler, Oct 04 2013, edited Aug 10 2024: main program moved to A106265, as function is_A106265 which returns the (least) c-value a(n), always nonzero for terms of A106265, or 0 if the argument isn't a term of A106265.

Crossrefs

Cf. A106265 (main entry), A106266 (the b-values).

Sequence in context: A283469 A163751 A067279 * A096101 A104890 A064123

Adjacent sequences: A106264 A106265 A106266 * A106268 A106269 A106270

Keyword

nonn

Author

Zak Seidov, Apr 28 2005

Extensions

More terms from Robert G. Wilson v, Apr 28 2005

All values recomputed from A106266 and A106265 by R. J. Mathar, Aug 24 2008

Initial term 1 and other solutions with b=0 added by M. F. Hasler, Oct 04 2013

Status

approved