login
This site is supported by donations to The OEIS Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A045523 n! has initial digit '4'. 18
8, 12, 26, 53, 57, 73, 82, 118, 129, 155, 160, 169, 185, 212, 215, 218, 232, 240, 265, 272, 281, 294, 338, 351, 369, 376, 388, 393, 398, 403, 408, 421, 432, 443, 446, 482, 485, 498, 515, 522, 533, 544, 548, 576, 580, 593, 602, 616, 621, 641, 646, 657, 668 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Chai Wah Wu, Table of n, a(n) for n = 1..10000

Index entries for sequences related to factorial numbers

MATHEMATICA

Select[ Range[ 700 ], IntegerDigits[ #! ] [[ 1 ]] == 4 & ]

PROG

(PARI) isok(n) = digits(n!)[1] == 4; \\ Michel Marcus, Feb 07 2017

CROSSREFS

For factorials with initial digit d (1 <= d <= 9) see A045509, A045510, A045511, A045516, A045517, A045518, A282021, A045519; A045520, A045521, A045522, A045523, A045524, A045525, A045526, A045527, A045528, A045529. See also A000142.

Sequence in context: A241482 A210982 A067677 * A006983 A283148 A072327

Adjacent sequences:  A045520 A045521 A045522 * A045524 A045525 A045526

KEYWORD

nonn,base

AUTHOR

Jeff Burch

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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 20 13:59 EDT 2018. Contains 316379 sequences. (Running on oeis4.)