37777: Near Repdigit 377..77

First few terms (base 10): \[[37^*_8]_n=\{3,31,255,2047,16383,\ldots\}\]

First few terms (base 8): \[\{\text{3},\text{37},\text{377},\text{3777},\text{37777},\ldots\}\]

General Formula:\[[37^*_8]_n=4\cdot8^{n}-1\]

Equivalent Patterns: \[[7^*6_8]_n=2\cdot[37^*_8]_n\] \[[17^*4_8]_n=4\cdot[37^*_8]_n\] \[[27^*2_8]_n=6\cdot[37^*_8]_n\]

Table

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