A004678 - OEIS

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A004678

Primes written in base 4.

2, 3, 11, 13, 23, 31, 101, 103, 113, 131, 133, 211, 221, 223, 233, 311, 323, 331, 1003, 1013, 1021, 1033, 1103, 1121, 1201, 1211, 1213, 1223, 1231, 1301, 1333, 2003, 2021, 2023, 2111, 2113, 2131, 2203, 2213 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	FORMULA	`a(n) = A007090(A000040(n)). - Jonathan Vos Post (jvospost3(AT)gmail.com), Sep 09 2006`
	CROSSREFS	`Cf. A004676 = Primes written in base 2, A001363 = Primes in ternary, A004679 = Primes written in base 5. A004680 = Primes written in base 6, A004681 = Primes written in base 7. A004682 = Primes written in base 8, A004683 = Primes written in base 9, A004684 = Primes written in base 11, A072805 = Primes of form 4k+3 written in base 3.` `Sequence in context: A115669 A036956 A076503 * A107715 A090707 A062350` `Adjacent sequences: A004675 A004676 A004677 * A004679 A004680 A004681`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`

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Last modified February 14 11:36 EST 2012. Contains 205623 sequences.