A070705 - OEIS

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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

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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: A130453 A376690 A259981 * A216326 A101909 A215676