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A022785
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Place where n-th 1 occurs in A023123.
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0
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1, 4, 10, 19, 30, 44, 61, 81, 103, 128, 156, 186, 219, 255, 294, 335, 379, 426, 475, 527, 582, 640, 700, 763, 829, 897, 968, 1042, 1119, 1198, 1280, 1365, 1452, 1542, 1635, 1731, 1829, 1930, 2034, 2141, 2250, 2362, 2477, 2594, 2714, 2837, 2963
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,2
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FORMULA
| a(n)=1+sum(k=1,n-1,ceil(r*k)) where r=e [From Benoit Cloitre (benoit784c(AT)orange.fr), Jan 24 2009]
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PROG
| (PARI) a(n)=1+sum(k=1, n-1, ceil(exp(1)*k)) [From Benoit Cloitre (benoit784c(AT)orange.fr), Jan 24 2009]
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CROSSREFS
| Sequence in context: A062198 A050858 A173248 * A057312 A008038 A160425
Adjacent sequences: A022782 A022783 A022784 * A022786 A022787 A022788
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KEYWORD
| nonn
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AUTHOR
| Clark Kimberling (ck6(AT)evansville.edu)
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