The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 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. 1
 362880, 362880, 181440, 60480, 15120, 3024, 504, 72, 9 (list; graph; refs; listen; history; text; internal format)
 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 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 * A011520 A321845 A226888 Adjacent sequences:  A110449 A110450 A110451 * A110453 A110454 A110455 KEYWORD base,nonn AUTHOR Amarnath Murthy, Aug 04 2005 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified December 8 08:06 EST 2021. Contains 349594 sequences. (Running on oeis4.)