login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A181321 Primes with digital sum 70. 4
189997999, 199799989, 199898899, 199997899, 199997989, 199998889, 268999999, 269998999, 278989999, 278999989, 279889999, 279988999, 287998999, 287999989, 288998989, 288999889, 288999979, 289699999, 289789999, 289889989 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The sequence begins with 8438 9-digit numbers.

Then there are 739572 10-digit numbers.

All terms == 7 (mod 18).

LINKS

T. D. Noe, Table of n, a(n) for n = 1..8438

MATHEMATICA

Select[Prime[Range[3*10^8]], Total[IntegerDigits[#]]==70 &] (* Vincenzo Librandi, Jul 09 2014 *)

PROG

(Magma) [p: p in PrimesUpTo(3*10^8) | &+Intseq(p) eq 70]; // Vincenzo Librandi, Jul 09 2014

(Python) # see code in A107579 which can be used to produce this sequence by giving the initial term p = 189997999 (or 8*10**7-1, for digit sum 70). - M. F. Hasler, Mar 16 2022

CROSSREFS

Cf. A073867, A111380, A181178, A181182.

Cf. similar sequences listed in A244918.

Sequence in context: A228377 A178565 A195902 * A267770 A209597 A251514

Adjacent sequences:  A181318 A181319 A181320 * A181322 A181323 A181324

KEYWORD

nonn,base

AUTHOR

Zak Seidov, Jan 26 2011

STATUS

approved

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 16 11:35 EDT 2022. Contains 353704 sequences. (Running on oeis4.)