A097408 Initial decimal digit of n^4.

1, 1, 8, 2, 6, 1, 2, 4, 6, 1, 1, 2, 2, 3, 5, 6, 8, 1, 1, 1, 1, 2, 2, 3, 3, 4, 5, 6, 7, 8, 9, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 6, 6, 7, 7, 8, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 1, 1, 1, 1, 1, 1

Offset: 1

Author

Eric W. Weisstein, Aug 16 2004

Keywords

• nonn
• base
• easy

Examples

			1, 16, 81, 256, 625, 1296, 2401, 4096, 6561, 10000, ...
		

Links

• Alois P. Heinz, Table of n, a(n) for n = 1..10000
• Eric Weisstein's World of Mathematics, Gelfand's Question

Crossrefs

Cf. A000027, A002993, A002994, A097409, A097410, A097411, A097412, A097413, A097414.

Programs

Maple

a:= n-> parse(""||(n^4)[1]):
seq(a(n), n=1..120);  # Alois P. Heinz, Jan 28 2016