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A233438 Primorial(n) mod compositorial(n), that is, A002110(n) mod A036691(n). 0
0, 2, 6, 30, 210, 2310, 30030, 510510, 9699690, 223092870, 6469693230, 200560490130, 2153462358810, 72490129383210, 1958274892758030, 58665460642891410, 50035643372444730, 19221664375883039070, 1123712842678138983270, 27456249893723439879090, 350421246400567367415390 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

COMMENTS

The sequence of numbers k such that a(k) > a(k+1) begins: 15, 42, 645, 805, 1566, 5430, 53698, ...

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(n) = A002110(n) mod A036691(n).

PROG

(PARI) a(n)=my(c, p, N); N=n; c=4; p=1; while(n>0, if(!isprime(c), p=p*c; n=n-1); c=c+1); prod(i=1, N, prime(i))%p \\ Ralf Stephan, Dec 21 2013

CROSSREFS

Cf. A002110, A036691, A233437, A233448.

Sequence in context: A305400 A096775 A171989 * A002110 A118491 A088257

Adjacent sequences:  A233435 A233436 A233437 * A233439 A233440 A233441

KEYWORD

nonn

AUTHOR

Alex Ratushnyak, Dec 09 2013

STATUS

approved

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Last modified August 25 16:31 EDT 2019. Contains 326324 sequences. (Running on oeis4.)