RosettaCodeData/Task/Hofstadter-Q-sequence/XBasic/hofstadter-q-sequence.basic

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PROGRAM "Hofstadter Q sequence"
VERSION "0.0000"
DECLARE FUNCTION Entry ()
FUNCTION Entry ()
limite = 1e5
DIM q[limite]
q[1] = 1
q[2] = 1
count = 0
FOR i = 3 TO limite
q[i] = q[i-q[i-1]] + q[i-q[i-2]]
IF q[i] < q[i-1] THEN
INC count
END IF
NEXT i
PRINT "First 10 terms: ";
FOR i = 1 TO 10
PRINT q[i];
NEXT i
PRINT "\nTerm 1000: "; q[1000]
PRINT "Terms less than preceding in first 100k: "; count
END FUNCTION
END PROGRAM