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A083957 a(n) = product of all cyclic permutation of concatenation of first n numbers. In each case the digits of a number are kept together for n>9. 1
1, 252, 8864856, 40638618022744, 23098236228791472696480, 1568841035670687222903484318855680, 12397389650957442295025809189993580551236444160 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

Initial terms are {n(n+1)/2}*{A000042(n)}.

LINKS

Table of n, a(n) for n=1..7.

EXAMPLE

a(1) =1, a(2) = 12*21= 252, a(3) = 123 *231*312 =8864856.

CROSSREFS

Cf. A083956.

Sequence in context: A068275 A068287 A229777 * A172656 A172760 A172831

Adjacent sequences:  A083954 A083955 A083956 * A083958 A083959 A083960

KEYWORD

base,nonn

AUTHOR

Amarnath Murthy, May 10 2003

EXTENSIONS

More terms from David Wasserman, Dec 03 2004

STATUS

approved

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Last modified November 27 16:35 EST 2021. Contains 349394 sequences. (Running on oeis4.)