A353146 Decimal repunits written in base 7.

0, 1, 14, 216, 3145, 44252, 641640, 12305251, 163304624, 2516300046, 36351200665, 542225612642, 11012302601310, 143163240420331, 2224515456064634, 32255340625240206, 453016062064453015, 6552245200234552232, 125142553603416142350

Offset: 0

Author

Seiichi Manyama, Apr 26 2022

Keywords

• nonn
• base
• easy

Crossrefs

Cf. A002275, A291962, A353142, A353143, A353144, A353145, A353147, A353148.

Cf. A007093, A023000.

Programs

PARI

a(n) = fromdigits(digits((10^n-1)/9, 7));

Formula

a(n) = A007093(A002275(n)).