id:A123928 - OEIS Search Results

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Numbers n such that the sum of the first n primes with the final digit 1 is prime (the number of consecutive prime numbers in A030430 that should be added to obtain A129077(x)).

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1, 3, 11, 27, 29, 31, 33, 49, 73, 77, 79, 123, 149, 157, 167, 169, 189, 207, 211, 219, 223, 227, 241, 261, 313, 319, 323, 329, 333, 357, 359, 417, 419, 423, 441, 463, 477, 491, 499, 513, 517, 553, 559, 573, 637, 667, 707, 709, 711, 729, 747, 757, 777, 813, 893 (list; graph; listen)

	OFFSET	`1,2`
	FORMULA	`a(n)=primes in A030430 added to obtain A129077(n)`
	EXAMPLE	`a(3)=11 because 11 is the number of consecutive prime numbers in A030430 that must be added to obtain A129077(3).`
	CROSSREFS	`Cf. A030430; A129077; A129078; A129079; A129081; A000040.` `Sequence in context: A051925 A011942 A101612 this_sequence A164897 A164845 A024194` `Adjacent sequences: A123925 A123926 A123927 this_sequence A123929 A123930 A123931`
	KEYWORD	`easy,base,nonn,less`
	AUTHOR	`Tomas Xordan (xordan.tom(AT)gmail.com), May 13 2007`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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