id:A083186 - OEIS Search Results

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Sum of first n primes whose indices are primes.

+0
3

3, 8, 19, 36, 67, 108, 167, 234, 317, 426, 553, 710, 889, 1080, 1291, 1532, 1809, 2092, 2423, 2776, 3143, 3544, 3975, 4436, 4945, 5492, 6055, 6642, 7241, 7858, 8567, 9306, 10079, 10876, 11735, 12612, 13531, 14498, 15489, 16520, 17583, 18670, 19823 (list; graph; listen)

	OFFSET	`1,1`
	COMMENT	`Partial sums of A006450.`
	FORMULA	`Sum_{k=1..n} prime(prime(k)).`
	PROGRAM	`pipsum(n) = {s=0; sr=0; for(x=1, n, y=prime(prime(x)); s+=y; print1(s" "); sr+=1.0/y; ); print(); print(sr) }`
	CROSSREFS	`Cf. A006450, A109790.` `Sequence in context: A139020 A147358 A086167 this_sequence A055341 A007326 A067332` `Adjacent sequences: A083183 A083184 A083185 this_sequence A083187 A083188 A083189`
	KEYWORD	`easy,nonn`
	AUTHOR	`Cino Hilliard (hillcino368(AT)gmail.com), Jun 01 2003`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

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