A070705 LCM of first n prime powers modulo next prime power.

2, 2, 2, 4, 4, 3, 1, 4, 8, 5, 14, 15, 5, 18, 1, 20, 16, 2, 15, 15, 8, 21, 29, 21, 16, 32, 29, 23, 22, 30, 54, 71, 37, 7, 37, 43, 45, 30, 36, 77, 100, 72, 64, 7, 56, 33, 42, 54, 132, 18, 90, 156, 91, 29, 86, 149, 139, 111, 112, 96, 62, 5, 204, 103, 41, 197, 81, 218, 128, 238, 58

Offset

1,1

Links

Table of n, a(n) for n=1..71.

Formula

a(n) = A051451(n) (mod A000961(n+1)) = A051126(A051451(n), A000961(n-1)).

Example

The case n=7 implies a(7) = A051451(7) (mod A000961(8)) = lcm(2,3,4,5,7,8,9) (mod 11) = 2520 (mod 11) = 1.

Crossrefs

Cf. A051451, A000961.

Sequence in context: A172309 A130453 A259981 * A216326 A101909 A215676

Adjacent sequences: A070702 A070703 A070704 * A070706 A070707 A070708

Keyword

nonn

Author

Lekraj Beedassy, May 15 2002

Extensions

More terms from Don Reble, May 16 2002

Status

approved