A152276 - OEIS

The OEIS is supported by the many generous donors to the OEIS 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 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

Other ways to Give

A152276

Number of 4's among the digits of all n-digit primes.

9

0, 3, 31, 326, 3412, 35234, 358468, 3625027, 36582450, 368381208, 3704525518, 37218251329, 373639701352, 3748854986738

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

Table of n, a(n) for n=1..14.

CROSSREFS

Cf. A130817, A152272, A152273, A152274, A152275, A152277, A152278, A152279, A152280, A152281.

Sequence in context: A361612 A276195 A210852 * A136024 A051200 A274667

Adjacent sequences: A152273 A152274 A152275 * A152277 A152278 A152279

KEYWORD

base,nonn

AUTHOR

Jon E. Schoenfield, Dec 01 2008

EXTENSIONS

a(12)-a(14) from Giovanni Resta, Jul 20 2015

STATUS

approved