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A067175
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Number of digits in p#(n) (A002110) (i.e. primorial p(n), the n-th prime).
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1
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1, 1, 1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 15, 17, 18, 20, 22, 24, 25, 27, 29, 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, 51, 53, 56, 58, 60, 62, 64, 66, 69, 71, 73, 76, 78, 80, 82, 85, 87, 89, 92, 94, 97, 99, 101, 104, 106, 109, 111, 113, 116, 118, 121, 123, 126, 128, 131, 133
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,4
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MAPLE
| with(numtheory): it := 1: for n from 1 to 150 do it := it*ithprime(n): printf(`%d, `, ceil(log[10](it))) od:
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MATHEMATICA
| Table[ Floor[ Log[10, Product[ Prime[k], {k, 1, n} ]] + 1], {n, 1, 70} ]
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CROSSREFS
| Cf. A002110. Essentially the same as A048856.
Cf. A004216, A004218, A055642.
Sequence in context: A191325 A190209 A048856 * A049809 A190278 A165763
Adjacent sequences: A067172 A067173 A067174 * A067176 A067177 A067178
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KEYWORD
| base,nonn
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AUTHOR
| Lekraj Beedassy (blekraj(AT)yahoo.com), Feb 18 2002
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EXTENSIONS
| Edited and extended by Robert G. Wilson v (rgwv(AT)rgwv.com) and James A. Sellers (sellersj(AT)math.psu.edu), Feb 19 2002
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