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A218859 A218858/4. 3
0, 0, 1, 3, 0, 4, 0, 5, 0, 4, 0, 7, 0, 6, 0, 8, 0, 8, 0, 9, 0, 6, 0, 9, 0, 16, 0, 8, 0, 12, 0, 11, 0, 8, 0, 18, 0, 16, 0, 12, 0, 18, 0, 15, 0, 14, 0, 15, 0, 10, 0, 14, 0, 18, 0, 28, 0, 16, 0, 19, 0, 22, 0, 14, 0, 34, 0, 23, 0, 20, 0, 19, 0, 22, 0, 18, 0, 16, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,4

COMMENTS

Essentially the number of first-quadrant Gaussian primes at taxicab distance n.

LINKS

T. D. Noe, Table of n, a(n) for n = 0..10000

T. D. Noe, Linear plot

CROSSREFS

Cf. A222593 (first-quadrant Gaussian primes).

Sequence in context: A272474 A308717 A297217 * A246691 A066705 A277894

Adjacent sequences:  A218856 A218857 A218858 * A218860 A218861 A218862

KEYWORD

nonn

AUTHOR

T. D. Noe, Nov 12 2012

STATUS

approved

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Last modified September 16 06:21 EDT 2019. Contains 327090 sequences. (Running on oeis4.)