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A079001
Digital equivalents of letters A, B, C, ..., Z on touch-tone telephone keypad.
2
2, 2, 2, 3, 3, 3, 4, 4, 4, 5, 5, 5, 6, 6, 6, 7, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9
OFFSET
1,1
EXAMPLE
a(3)= 2 because the third letter of the English alphabet, C, is represented by the digit 2 on telephone keypad.
CROSSREFS
Cf. A079048.
Sequence in context: A127757 A172264 A380377 * A032615 A261231 A296357
KEYWORD
fini,full,nonn
AUTHOR
Donald S. McDonald, Feb 01 2003
STATUS
approved