A115680 Pentagonal numbers (A000326) whose digit reversal is a brilliant number (A078972).

12, 51, 176, 715, 925, 1426, 3151, 3290, 10795, 15251, 16172, 19097, 79235, 92132, 114955, 117460, 119992, 127750, 150575, 355510, 755795, 779401, 1010651, 1108970, 1258126, 1274665, 1294097, 1463722, 1466687, 1675345, 1881040

Offset: 1

Author

Giovanni Resta, Jan 31 2006

Keywords

• nonn
• base

Examples

			3151 is the 46th pentagonal number and 1513=17*89 is brilliant.
		

Crossrefs

Cf. A000326, A078972, A115679.