A092504 - OEIS

A092504

a(n) = prime(n) + prime(n^2).

4, 10, 28, 60, 108, 164, 244, 330, 442, 570, 692, 864, 1050, 1236, 1474, 1672, 1938, 2204, 2504, 2812, 3156, 3540, 3886, 4300, 4734, 5152, 5622, 6114, 6590, 7110, 7700, 8292, 8874, 9480, 10080, 10778, 11478, 12212, 12910, 13672, 14506, 15282, 16068

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OFFSET

1,1

LINKS

Table of n, a(n) for n=1..43.

FORMULA

a(n) = A000040(n) + A011757(n). - Elmo R. Oliveira, Mar 22 2023

EXAMPLE

a(1) = 4 because prime(1) = 2 and prime(1) = 2.

a(2) = 10 because prime(2) = 3 and prime(4) = 7.

a(3) = 28 because prime(3) = 5 and prime(9) = 23.

MATHEMATICA

Table[Prime[n] + Prime[n^2], {n, 45}] (* Robert G. Wilson v, Apr 08 2004 *)

CROSSREFS

Cf. A000040, A011757.

Sequence in context: A257028 A174938 A032248 * A340568 A038579 A133726

Adjacent sequences: A092501 A092502 A092503 * A092505 A092506 A092507

KEYWORD

nonn

AUTHOR

Giovanni Teofilatto, Apr 05 2004

EXTENSIONS

Corrected and extended by Robert G. Wilson v, Apr 08 2004

STATUS

approved