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A317537 The n-th positive integer that has exactly n representations of the form 1 + p1 * (1 + p2* ... * (1 + p_j)...), where [p1, ..., p_j] is a (possibly empty) list of distinct primes. 1
1, 29, 91, 426, 1002, 2283, 3979, 5886, 10861, 17116, 20749, 35106, 44031, 60919, 67453, 108655, 142429, 197107, 232625, 303317, 352093, 432517, 542935, 642520, 839938, 988791, 1050505, 1208559, 1612876, 1753324, 2129203, 2391496, 2735890, 3141916, 3593278 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,2

LINKS

Table of n, a(n) for n=1..35.

FORMULA

a(n) = A317390(n,n).

EXAMPLE

a(1) = 1: 1.

a(2) = 29: 1 + 2 * (1 + 13) = 1 + 7 * (1 + 3) = 29.

a(3) = 91: 1 + 2 * (1 + 11 * (1 + 3)) = 1 + 3 * (1 + 29) = 1 + 5 * (1 + 17) = 91.

CROSSREFS

A diagonal of A317390.

Cf. A317385.

Sequence in context: A325073 A152294 A201487 * A107940 A039416 A043239

Adjacent sequences:  A317534 A317535 A317536 * A317538 A317539 A317540

KEYWORD

nonn

AUTHOR

Alois P. Heinz, Jul 30 2018

STATUS

approved

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Last modified December 3 11:58 EST 2021. Contains 349462 sequences. (Running on oeis4.)