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A059852
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Consider the English alphabet in the International Morse radio telegraph code. Map a 'dit' to the digit one and a 'dah' to the digit 2, then express that ternary number in decimal.
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4
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5, 67, 70, 22, 1, 43, 25, 40, 4, 53, 23, 49, 8, 7, 26, 52, 77, 16, 13, 2, 14, 41, 17, 68, 71, 76
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,1
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COMMENTS
| F in Morse is .._. This becomes 1121 in ternary and 43 in decimal, so a(6) = 43.
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REFERENCES
| "Learing The Radiotelegraph Code," Seventh Edition, published by The American Radio Relay League, West Hartford 7, Connecticut, 1955.
"Morse Code Course," Jeppesen and Company, Denver, Colorado, 1962.
"International Morse Code," prepared by Lt. Commander F.R.L. Tuthill, USNR and Lt. (J.G.) E.L. Battey, USNR, published by Insuline Corporation of America, Long Island City, NY.
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CROSSREFS
| Sequence in context: A156597 A059489 A197161 * A057171 A142009 A067393
Adjacent sequences: A059849 A059850 A059851 * A059853 A059854 A059855
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KEYWORD
| base,easy,fini,full,nonn,word
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AUTHOR
| Robert G. Wilson v (rgwv(AT)rgwv.com), Feb 27 2001
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