A099532 Lesser of a,b where n^2 = a^3 + b^3; a,b > 0 and gcd(a,b)=1. The greater of a,b is the corresponding term in A099533 and n, which is used to order this sequence, is the corresponding term in A099426.

1, 11, 56, 57, 217, 242, 305, 851, 23, 122, 592, 1706, 1376, 1001, 2257, 1960, 193, 781, 889, 1729, 3071, 2920, 5896, 1346, 2137, 2184, 1633, 8313, 7034, 1953, 7379, 9097, 6104, 10712, 4097, 12369, 7082, 12265, 13441, 15709, 18314, 5833, 8792, 8929, 3641

Offset

1,2

Links

Donovan Johnson, Table of n, a(n) for n = 1..300

Example

a(2) is 11 because term A099426(2) is 228, 228^2 = 11^3 + 37^3 and 11 < 37.

Prog

(PARI) for(s=2, 1e5, for(x=1, s\2, my(y=s-x); if(gcd(x, y)>1, next); if(issquare(x^3+y^3), print1(x", ")))) \\ Charles R Greathouse IV, Nov 06 2014

Crossrefs

Cf. A099426, A099533.

Sequence in context: A218000 A206528 A259193 * A041226 A042503 A223766

Adjacent sequences: A099529 A099530 A099531 * A099533 A099534 A099535

Keyword

nonn

Author

Hans Havermann, Oct 20 2004

Status

approved