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A174514 Partial sums of A048995. 3
1, 5, 56, 143, 238, 357, 480, 625, 786, 973, 1178, 1387, 1602, 1839, 2084, 2331, 2592, 2859, 3134, 3421, 3710, 4001, 4304, 4609, 4930, 5253, 5578, 5913, 6254, 6625, 7030, 7437, 7862, 8291, 8738, 9209, 9682, 10179, 10694, 11211, 11730, 12259, 12798, 13349, 13904, 14465, 15040, 15623, 16234, 16857, 17482, 18109, 18766 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

COMMENTS

The subsequence of values which are themselves in A048995 begins: 1, 625. The subsequence of primes begins 5, 4001, 8291, 9209.

LINKS

Table of n, a(n) for n=1..53.

FORMULA

a(n) = SUM[i=1..n] A048995(i) = SUM[i=1..n] (numbers that are not the sum of the nontrivial factors, excluding 1 and i, of some natural number).

EXAMPLE

a(8) = 1 + 4 + 51 + 87 + 95 + 119 + 123 + 145 = 625 = 5^4.

CROSSREFS

Cf. A048050, A048995.

Sequence in context: A067515 A289259 A072318 * A041995 A288543 A062125

Adjacent sequences:  A174511 A174512 A174513 * A174515 A174516 A174517

KEYWORD

nonn

AUTHOR

Jonathan Vos Post, Nov 28 2010

STATUS

approved

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Last modified July 22 21:25 EDT 2019. Contains 325227 sequences. (Running on oeis4.)