A110452 Product of all k-digit numbers starting from n where k is the number of digits in n. a(n) = n*(n+1)*...*(10^k-1), where k is the number of digits in n.

362880, 362880, 181440, 60480, 15120, 3024, 504, 72, 9

Offset

1,1

Comments

The subsequent terms are too large to include: a(10) has 151 digits, a(11) has 150 digits, a(12) has 149 digits. - R. J. Mathar, Feb 08 2008

Links

Table of n, a(n) for n=1..9.

Maple

A110452 := proc(n) local k ; k := nops(convert(n, base, 10)) ; mul(i, i=n..10^k-1) ; end: for n from 1 to 13 do printf("%d, ", A110452(n)) ; od: # R. J. Mathar, Feb 08 2008

Crossrefs

Sequence in context: A109160 A269127 A110453 * A354708 A011520 A321845

Adjacent sequences: A110449 A110450 A110451 * A110453 A110454 A110455

Keyword

base,nonn

Author

Amarnath Murthy, Aug 04 2005

Status

approved