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A077126 Sum of even indexed primes. 2
3, 10, 23, 42, 71, 108, 151, 204, 265, 336, 415, 504, 605, 712, 825, 956, 1095, 1246, 1409, 1582, 1763, 1956, 2155, 2378, 2607, 2846, 3097, 3360, 3631, 3912, 4205, 4516, 4833, 5170, 5519, 5878, 6251, 6634, 7031, 7440, 7861, 8294, 8737, 9194, 9657 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(2)=10 as p_1=2, p_2=3, p_3=5 and p_4=7, therefore a(2)=p_2+p_4=10

PROG

(PARI) pc=1; ps=0; forprime (p=2, 500, pc=3-pc; if (pc==1, ps=ps+p; print1(ps", ")))

CROSSREFS

Sequence in context: A027164 A166119 A041403 * A172113 A172112 A068043

Adjacent sequences:  A077123 A077124 A077125 * A077127 A077128 A077129

KEYWORD

nonn

AUTHOR

Jon Perry (perry(AT)globalnet.co.uk), Nov 29 2002

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Last modified February 15 21:04 EST 2012. Contains 205854 sequences.