A330790 Numbers k where 2^k in decimal has a record number of zeros.

0, 10, 42, 43, 79, 88, 100, 102, 189, 198, 242, 250, 252, 262, 306, 368, 383, 447, 464, 466, 557, 628, 654, 657, 746, 771, 798, 905, 988, 989, 1044, 1114, 1118, 1217, 1316, 1461, 1486, 1493, 1703, 1705, 1753, 1926, 1993, 2122, 2159, 2368, 2462, 2502, 2594, 2680, 2739, 2900, 2936

Offset: 1

Author

Chai Wah Wu, Feb 11 2020

Keywords

• nonn
• base

Comments

Where records occur in A027870. The numbers of zeros are 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 15, 17, 18, 19, 20, 21, 24, 25, 28, ...

Links

• Chai Wah Wu, Table of n, a(n) for n = 1..2741

Crossrefs

Cf. A027870, A031146, A031147.