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This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

User: Jorge H. Costa

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A307673 Partial sums of A108754.

Original entry on oeis.org

1, 2, 3, 4, 7, 12, 21, 34, 53, 82, 121, 174, 243, 328, 431, 556, 707, 884, 1091, 1330, 1601, 1908, 2253, 2640, 3075, 3560, 4095, 4682, 5321, 6014, 6773, 7600, 8499, 9470, 10521, 11652, 12867, 14170, 15563, 17050, 18635, 20318, 22107, 24002, 26005, 28116, 30345
Offset: 1

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Author

Jorge H. Costa, Apr 20 2019

Keywords

Comments

Partial sums of the difference between partial sums of the first n primes and n^2.

Examples

			a(6) = Sum_{k=1..6} A108754(k) = 1+1+1+1+3+5 = 12.

Crossrefs

Cf. A108754.

Programs

  • Mathematica
    With[{nn = 48}, Accumulate@ Map[Subtract @@ # &, Transpose@ {Accumulate@ Prime@ Range[nn], Range[nn]^2}]] (* Michael De Vlieger, Apr 21 2019 *)

Extensions

More terms from Michael De Vlieger, Apr 21 2019

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