A133547 a(n) = sum of squares of first n odd primes.

9, 34, 83, 204, 373, 662, 1023, 1552, 2393, 3354, 4723, 6404, 8253, 10462, 13271, 16752, 20473, 24962, 30003, 35332, 41573, 48462, 56383, 65792, 75993, 86602, 98051, 109932, 122701, 138830, 155991, 174760, 194081, 216282, 239083, 263732

Offset

1,1

Links

Table of n, a(n) for n=1..36.

Formula

a(n) = A024450(n+1)-4. - Jason Yuen, Sep 23 2024

Example

a(3)=83 because 3^2+5^2+7^2=83.

Mathematica

c = 2; a = {}; b = 0; Do[b = b + Prime[n]^c; AppendTo[a, b], {n, 2, 1000}]; a

Crossrefs

Cf. A007148, A007504, A024450.

Sequence in context: A139275 A236370 A273744 * A100179 A106598 A279128

Adjacent sequences: A133544 A133545 A133546 * A133548 A133549 A133550

Keyword

nonn,easy

Author

Artur Jasinski, Sep 16 2007

Status

approved