A115680 - OEIS

This site is supported by donations to The OEIS Foundation.

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 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,1`
	EXAMPLE	`3151 is the 46th pentagonal number and 1513=17*89 is brilliant.`
	CROSSREFS	`Cf. A000326, A078972, A115679.` `Sequence in context: A145886 A166776 A200887 * A066757 A045219 A054410` `Adjacent sequences: A115677 A115678 A115679 * A115681 A115682 A115683`
	KEYWORD	`nonn,base`
	AUTHOR	`Giovanni Resta (g.resta(AT)iit.cnr.it), Jan 31 2006`

Content is available under The OEIS End-User License Agreement .

Last modified February 16 01:56 EST 2012. Contains 205860 sequences.