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A088366 a(n) = index of the n-th local maximum of A053707. 1
2, 5, 8, 11, 15, 18, 20, 25, 27, 29, 31, 36, 38, 42, 45, 49, 51, 54, 58, 62, 64, 67, 69, 71, 74, 76, 79, 81, 84, 89, 92, 95, 97, 99, 104, 106, 111, 113, 117, 122, 126, 130, 133, 135, 137, 140, 143, 145, 147, 149, 151, 154, 157, 159, 162, 167, 170, 172, 175, 179, 181 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

A053707(a(n)) = A088365(n).

LINKS

Table of n, a(n) for n=1..61.

EXAMPLE

The fourth local maximum of A053707 is 40 and occurs at index 11, hence a(4) = 11; A053707(a(4)) = A053707(11)) = 40 = A088365(4).

PROG

(PARI) {m=1; k=0; for(n=2, 500000, if(matsize(factor(n))[1]==1&&factor(n)[1, 2]>1, d=n-m; if((k<2||b<c)&&(!k<1&&d<=c), print1(k, ", ")); k++; m=n; b=c; c=d))}

CROSSREFS

Cf. A025475, A053707, A088365.

Sequence in context: A295624 A284882 A190364 * A257984 A186228 A184747

Adjacent sequences:  A088363 A088364 A088365 * A088367 A088368 A088369

KEYWORD

nonn

AUTHOR

Klaus Brockhaus, Sep 27 2003

STATUS

approved

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Last modified June 30 06:00 EDT 2022. Contains 354914 sequences. (Running on oeis4.)