A362097 Numbers k such that 5^k starts with k.

2, 7, 19, 67, 602, 1189, 3028, 48076, 5778508, 7409478, 269801494, 712068169115, 13604453478381, 54652722882618, 277356314617272489

Offset

1,1

Links

Table of n, a(n) for n=1..15.

Crossrefs

Cf. A000351.

b^k starts with k: A131493 (b=pi), A131494 (b=e), A100129 (b=2), A362096 (b=3), A320930 (b=4), A362097 (b=5), A362098 (b=6), A362099 (b=7), A362100 (b=8), A362101 (b=9).

Cf. A033147, A131495.

Sequence in context: A318264 A164979 A243279 * A080873 A381322 A126162

Adjacent sequences: A362094 A362095 A362096 * A362098 A362099 A362100

Keyword

nonn,base,more

Author

N. J. A. Sloane, Apr 10 2023, based on an email from Keith F. Lynch

Extensions

a(12)-a(15) from Max Alekseyev, Nov 08 2025

Status

approved