id:A030430 - OEIS Search Results

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Primes of form 10n+1.

+0
21

11, 31, 41, 61, 71, 101, 131, 151, 181, 191, 211, 241, 251, 271, 281, 311, 331, 401, 421, 431, 461, 491, 521, 541, 571, 601, 631, 641, 661, 691, 701, 751, 761, 811, 821, 881, 911, 941, 971, 991, 1021, 1031, 1051, 1061, 1091, 1151, 1171, 1181, 1201, 1231, 1291 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Also primes of form 5n+1 or equivalently 5n+6.`
	LINKS	`A. Granville and G. Martin, Prime number races`
	FORMULA	`a(n) = 10A024912(n+1)+1 = 5A081759(n)+6.`
	MATHEMATICA	`Select[Prime@Range[210], Mod[ #, 10] == 1 &] (Chandler)`
	CROSSREFS	`Cf. A024912, A045453, A049511, A081759.` `Cf. A104146(floor(a(n)/10)) = 1.` `Sequence in context: A038351 A068871 A004615 this_sequence A059313 A040975 A040172` `Adjacent sequences: A030427 A030428 A030429 this_sequence A030431 A030432 A030433`
	KEYWORD	`nonn`
	AUTHOR	`Warut Roonguthai (warut822(AT)yahoo.com)`

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Last modified August 19 23:53 EDT 2008. Contains 142930 sequences.

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