A053997 - OEIS

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A053997

Sum of primes in n-th shell of prime spiral.

1

2, 98, 960, 3828, 10228, 21772, 40248, 67390, 105222, 156300, 221246, 304392, 404404, 528100, 672456, 844334, 1044690, 1270896, 1531834, 1833912, 2163068, 2537074, 2949726, 3412394, 3922832, 4470566, 5074544, 5742778, 6460670

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

REFERENCES

G. L. Honaker, Jr., idea in 1998 email correspondence.

Mike Keith, "Letter Spirals," Word Ways (33,1), Feb 15 2000. Pages 3-7.

LINKS

Table of n, a(n) for n=0..28.

CROSSREFS

Sequence in context: A316278 A305957 A317218 * A305688 A317068 A316949

Adjacent sequences: A053994 A053995 A053996 * A053998 A053999 A054000

KEYWORD

easy,nonn

AUTHOR

Enoch Haga, Apr 06 2000

STATUS

approved