A126574 a(n) = product of terms in n-th row of triangle A126571.

1, 6, 60, 980, 17010, 691152, 14385280, 553311000, 20549850750, 1183631840160, 40862208651264, 3546593581385400, 146387176845000000, 11600430026834880000, 876804182167691796480, 71417792752792726589856

Offset

1,2

Links

Table of n, a(n) for n=1..16.

Mathematica

f[m_, n_] := Block[{k = 0, c = n}, While[c > 0, k++; While[GCD[k, m] > 1, k++ ]; c--; ]; k]; Table[Product[f[m, n], {m, n}], {n, 17}] (* Ray Chandler, Dec 29 2006 *)

Crossrefs

Cf. A126571, A126573.

Sequence in context: A296956 A366335 A308332 * A061573 A248655 A092356

Adjacent sequences: A126571 A126572 A126573 * A126575 A126576 A126577

Keyword

nonn

Author

Leroy Quet, Dec 28 2006

Extensions

Extended by Ray Chandler, Dec 29 2006

Status

approved