A116038 n+p(n)+p(p(n)) is a brilliant number (A078972), where p(n) denotes the n-th prime.

1, 2, 11, 29, 33, 43, 53, 77, 81, 103, 335, 441, 497, 547, 623, 631, 691, 693, 709, 729, 749, 795, 909, 913, 941, 949, 969, 983, 1025, 1035, 1123, 1137, 1173, 1177, 1181, 1189, 1229, 1243, 1297, 1323, 1349, 1375, 1389, 1463, 1489, 1561, 1621, 1639

Offset

1,2

Links

Table of n, a(n) for n=1..48.

Example

1123+p(1123)+p(p(1123)) = 103793 = 271*383.

Crossrefs

Cf. A078972, A116039.

Sequence in context: A254627 A206583 A045493 * A213521 A192361 A213522

Adjacent sequences: A116035 A116036 A116037 * A116039 A116040 A116041

Keyword

nonn,base

Author

Giovanni Resta, Feb 13 2006

Status

approved