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A363450 Partial sums of A180405. 2
2, 3, 7, 13, 16, 23, 31, 41, 52, 67, 79, 97, 111, 127, 149, 173, 192, 223, 251, 271, 294, 331, 367, 397, 423, 457, 486, 521, 563, 601, 641, 673, 712, 757, 809, 853, 907, 953, 1009, 1069, 1112, 1163, 1213, 1277, 1361, 1409, 1458, 1511, 1579, 1637, 1699, 1777, 1847, 1913, 1970 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
The construction in A180405 means that if n is in A180405, then a(n) is prime. It seems that the converse is also true: if a(n) here is prime, then n is in A180405.
Indices of composite terms are given by A363379.
LINKS
Neal Gersh Tolunsky, Graph of first 36568 terms
CROSSREFS
Sequence in context: A322703 A225098 A101739 * A336378 A141633 A045327
KEYWORD
nonn,easy
AUTHOR
Neal Gersh Tolunsky, Jun 02 2023
STATUS
approved

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Last modified April 18 22:18 EDT 2024. Contains 371782 sequences. (Running on oeis4.)