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A308071
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Numbers k such that k is the substring identical to the most significant digits of its base-8 representation.
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3
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0, 1, 2, 3, 4, 5, 6, 7, 13663722656306465044, 13664030703642511032, 13707143454447524553, 13710552565235121771, 14336552505653142213, 14340267205650777016, 14340267205651006010, 15013125376232575510, 15013125401147630620, 10142740706726414575022612720
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internal format)
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OFFSET
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1,3
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COMMENTS
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Numbers k whose base-8 representation begins with the same digits as k itself.
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LINKS
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EXAMPLE
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13663722656306465044_10 = 1366372265630646504424_8, which also begins with '13663722656306465044'.
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PROG
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(PARI) isok(n) = my(vb=digits(n, 8), vd=digits(n)); vd == vector(#vd, k, vb[k]); \\ Michel Marcus, May 17 2019
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CROSSREFS
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KEYWORD
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nonn,base
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AUTHOR
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STATUS
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approved
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