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A047894 Number of digits of A000182(n). 1
0, 1, 2, 3, 4, 6, 8, 10, 12, 14, 16, 19, 21, 23, 26, 28, 31, 34, 36, 39, 42, 45, 48, 51, 54, 57, 60, 63, 66, 69, 72, 76, 79, 82, 85, 89, 92, 95, 99, 102, 105, 109, 112, 116, 119, 123, 126, 130, 134, 137, 141, 144, 148, 152, 155, 159, 163, 167, 170, 174, 178, 182, 185 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

REFERENCES

Peters, J. and Stein, J., Matematische Tafeln. Revised Russian Edition, 1968, Moscow.

LINKS

Table of n, a(n) for n=1..63.

FORMULA

a(n) = floor(log_10(A000182(n)) + 1. - Franklin T. Adams-Watters, Mar 29 2014

EXAMPLE

a(7) = 8 since the 7th tangential number is 22368256 has 8 decimal digits.

CROSSREFS

Cf. A000182, A000384, A034972, A034971, A047893.

Sequence in context: A283808 A068578 A203812 * A113769 A056865 A097602

Adjacent sequences:  A047891 A047892 A047893 * A047895 A047896 A047897

KEYWORD

nonn,base

AUTHOR

Labos Elemer

STATUS

approved

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Last modified September 16 06:18 EDT 2021. Contains 347469 sequences. (Running on oeis4.)