A080064 - OEIS

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A080064

Numbers n such that n == 1 modulo (spf(n)+1), where spf(m) is the smallest prime dividing m (A020639).

2

1, 4, 9, 10, 16, 21, 22, 25, 28, 33, 34, 40, 45, 46, 49, 52, 55, 57, 58, 64, 69, 70, 76, 81, 82, 85, 88, 93, 94, 100, 105, 106, 112, 115, 117, 118, 121, 124, 129, 130, 136, 141, 142, 145, 148, 153, 154, 160, 161, 165, 166, 169, 172, 175, 177, 178, 184, 189, 190, 196

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OFFSET

1,2

COMMENTS

A080063(m) = 1 iff m = a(k) for some k.

LINKS

Table of n, a(n) for n=1..60.

CROSSREFS

Sequence in context: A050943 A010406 A010451 * A329609 A340784 A260963

Adjacent sequences: A080061 A080062 A080063 * A080065 A080066 A080067

KEYWORD

nonn

AUTHOR

Reinhard Zumkeller, Jan 24 2003

STATUS

approved