A115695 Powerful(1) numbers (A001694) whose digit reversal is a pentagonal number (A000326).

1, 100, 500, 529, 1000, 1089, 2116, 5000, 6241, 10000, 50000, 52900, 100000, 103041, 108900, 151875, 211600, 500000, 529000, 549152, 624100, 1000000, 1089000, 2116000, 5000000, 5290000, 6241000, 10000000

Offset: 1

Author

Giovanni Resta, Jan 31 2006

Keywords

• nonn
• base

Examples

			529=23^2 is powerful and 925 is the 25th pentagonal number.
		

Links

• Index entries for sequences related to powerful numbers

Crossrefs

Cf. A000326, A001694, A115696.